How popular is the baby name Theo in the United States right now? How popular was it historically? Find out using the graph below! Plus, check out all the blog posts that mention the name Theo.

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Popularity of the Baby Name Theo


Posts that Mention the Name Theo

Popular Baby Names in Northern Ireland, 2020

According to the Northern Ireland Statistics and Research Agency (NISRA), the most popular baby names in Northern Ireland last year were Grace and James.

Here are the Northern Ireland’s top 10 girl names and top 10 boy names of 2020:

Girl Names

  1. Grace, 176 baby girls
  2. Emily, 146
  3. Isla, 144
  4. Fiadh, 138
  5. Olivia, 133
  6. Sophia, 125
  7. Sophie, 123
  8. Amelia, 115
  9. Lucy, 112
  10. Freya and Ella, 101 each (tie)

Boy Names

  1. James, 190 baby boys
  2. Jack, 175
  3. Noah, 174
  4. Charlie, 169
  5. Oliver, 134
  6. Thomas, 119
  7. Finn, 112 (tie)
  8. Theo, 112 (tie)
  9. Harry, 111 (tie)
  10. Cillian, 111 (tie)

In the girls’ top 10, Fiadh, Lucy and Freya replaced Anna and Evie.

In the boys’ top 10, Finn, Theo, and Cillian replaced Jacob, Daniel, and Alfie.

Now, Northern Ireland doesn’t technically release data on all baby names…but their downloadable tables do include two extra alphabetized sets of names below those that were given to 3 babies. My strong hunch is that these were the names given to 2 babies and 1 baby, respectively, and that the numbers/rankings were simply stripped out.

So, going with that theory, here are some of the names from the second alphabetized set (the names that I’m assuming were used just once in Northern Ireland last year):

Unique Girl NamesUnique Boy Names
Annagold, Butjilo, Castalia, Dhana, Elmamay, Fodla, Ghalia, Harrie, Jonatha, Krystal-Lake, Lorcagh, Madmazell, Nurvi, Ozde, Riabh, Sauleja, Taleen, Vespa, Wanda, ZilvaniaAdvencio, Alfadil, Boss, Cannis, Dualtagh, Elnino, Fhaolain, Gazza, Herkus, Jailandas, Kai-Bob, Liadhnan, Mitko, Nugmanali, Ocean-Gray, Rathlan, Sujoy, Togi, Vivaan, Weller, Zaslan

(I posted even more of Northern Ireland’s unique baby names over on Patreon.)

NISRA didn’t release the 2019 data during 2020, so I never wrote a post with the 2019 rankings. But I did write about the 2018 rankings, which were topped by Grace and James/Noah.

Next door in the Republic of Ireland, the top names of 2020 were Grace and Jack.

Source: Baby Names – NISRA

Popular Baby Names in Gibraltar, 2020

According to the Gibraltar Broadcasting Corporation (GBC), the most popular baby names in the tiny British Overseas Territory of Gibraltar last year were Anna and Thomas.

Here are Gibraltar’s top 5 girl names and top 5+ boy names of 2020:

Girl Names

  1. Anna, 5 baby girls
  2. Emilia, 3 (4-way tie)
  3. Mia, 3 (4-way tie)
  4. Sienna, 3 (4-way tie)
  5. Sophie, 3 (4-way tie)

Boy Names

  1. Thomas, 6 baby boys
  2. Leo, 5
  3. Jackson, 4 (8-way tie)
  4. Kai, 4 (8-way tie)
  5. Logan, 4 (8-way tie)
  6. Lucas, 4 (8-way tie)
  7. Michael, 4 (8-way tie)
  8. Noah, 4 (8-way tie)
  9. Rhys, 4 (8-way tie)
  10. Theo, 4 (8-way tie)

The unique names bestowed just once in 2020 include…

  • Boy names: Arkaitz, Leith, Shly, Wilfie, Zyle
  • Girl names: Dayami, Eritreya, Morwenna, Sanna, Tamira

In 2019, the top names in Gibraltar were Olivia and Ethan.

Source: Thomas and Anna; Gibraltar’s most popular baby names 2020

“Real World” Baby Names: Amaya, Baya, Brynn…

“This is the true story…of seven strangers…picked to live in a loft…and have their lives taped…”

Several months ago, the cast of the inaugural season of MTV’s The Real World held a 6-day reunion in the very same NYC loft they shared back in 1992. The reunion — which was filmed, of course — is now airing as a series on the Paramount+ platform. (Here’s the trailer.)

When I was a teenager, I loved watching The Real World. (And I appreciated that the names of the cast members were always prominently displayed in the opening credits!) So I think now would be a great time to go back and see if any Real World cast member names had an influence on U.S. baby names.

First, let’s start with a comprehensive list of all the cast member names from each of RW‘s 33 (!) seasons…

  1. The Real World: New York (1992): Andre, Becky, Eric, Heather, Julie, Kevin, Norman
  2. The Real World: California (1993): Aaron, Beth (x2), David, Dominic, Glen, Irene, Jon, Tami
  3. The Real World: San Francisco (1994): Cory, Jo, Judd, Mohammed, Pam, Pedro, Puck, Rachel
  4. The Real World: London (1995): Jacinda, Jay, Kat, Lars, Mike, Neil, Sharon
  5. The Real World: Miami (1996): Cynthia, Dan, Flora, Joe, Melissa, Mike, Sarah
  6. The Real World: Boston (1997): Elka, Genesis, Jason, Kameelah, Montana, Sean, Syrus
  7. The Real World: Seattle (1998): David, Irene, Janet, Lindsay, Nathan, Rebecca, Stephen
  8. The Real World: Hawaii (1999): Amaya, Colin, Justin, Kaia, Matt, Ruthie, Teck
  9. The Real World: New Orleans (2000): Danny, David, Jamie, Julie, Kelley, Matt, Melissa
  10. The Real World: Back to New York (2001): Coral, Kevin, Lori, Malik, Mike, Nicole, Rachel
  11. The Real World: Chicago (2002): Aneesa, Cara, Chris, Keri, Kyle, Theo, Tonya
  12. The Real World: Las Vegas (2002-2003): Alton, Arissa, Brynn, Frank, Irulan, Steven, Trishelle
  13. The Real World: Paris (2003): Ace, Adam, Chris, Christina, Leah, Mallory, Simon
  14. The Real World: San Diego (2004): Brad, Cameran, Charlie, Frankie, Jacquese, Jamie, Randy, Robin
  15. The Real World: Philadelphia (2004-2005): Karamo, Landon, Melanie, M.J., Sarah, Shavonda, Willie
  16. The Real World: Austin (2005): Danny, Johanna, Lacey, Melinda, Nehemiah, Rachel, Wes
  17. The Real World: Key West (2006): Janelle, John, Jose, Paula, Svetlana, Tyler, Zach
  18. The Real World: Denver (2006-2007): Alex, Brooke, Colie, Davis, Jenn, Stephen, Tyrie
  19. The Real World: Sydney (2007-2008): Ashli, Cohutta, Dunbar, Isaac, KellyAnne, Parisa, Shauvon, Trisha
  20. The Real World: Hollywood (2008): Brianna, Brittini, Dave, Greg, Joey, Kimberly, Nick, Sarah, Will
  21. The Real World: Brooklyn (2009): Baya, Chet, Devyn, J.D., Katelynn, Ryan, Sarah, Scott
  22. The Real World: Cancun (2009): Ayiiia, Bronne, CJ, Derek, Emilee, Jasmine, Joey, Jonna
  23. The Real World: D.C. (2009-2010): Andrew, Ashley, Callie, Emily, Erika, Josh, Mike, Ty
  24. The Real World: New Orleans (2010): Ashlee, Eric, Jemmye, McKenzie, Preston, Ryan (x2), Sahar
  25. The Real World: Las Vegas (2011): Adam, Dustin, Heather (x2), Leroy, Michael, Nany, Naomi
  26. The Real World: San Diego (2011): Alexandra, Ashley, Frank, Nate, Priscilla, Sam, Zach
  27. The Real World: St. Thomas (2012): Brandon (x2), LaToya, Laura, Marie, Robb, Trey
  28. The Real World: Portland (2013): Anastasia, Averey, Jessica, Johnny, Joi, Jordan, Marlon, Nia
  29. Real World: Ex-Plosion (2014): Arielle, Ashley (x2), Brian, Cory, Hailey, Jamie, Jay, Jenna, Jenny, Lauren, Thomas
  30. Real World: Skeletons (2014-2015): Bruno, Jason, Madison, Nicole, Sylvia, Tony, Violetta
  31. Real World: Go Big or Go Home (2016): CeeJai, Chris, Dean, Dione, Dylan, Jenna, Kailah, Sabrina
  32. Real World Seattle: Bad Blood (2016-2017): Anika, Anna, Jennifer, Jordan, Kassius, Katrina, Kimberly, Mike, Orlana, Peter, Robbie, Theo, Tyara, Will
  33. The Real World: Atlanta (2019): Arely, Clint, Dondre, Justin, Meagan, Tovah, Yasmin

The names in boldface line up with a discernible increase in baby name usage. (Other Real World names may have affected baby names as well, but it can be hard to tell when, say, a name is already common, or already on the rise.)

Here are details on all the boldfaced names, plus two more influential RW names (from seasons 6 and 18) that didn’t even belong to primary cast members.

  • The name Jacinda (from season 4; 1995) saw peak usage in 1996.
  • The name Flora (5; 1996) saw increased usage in 1997.
  • The name Kameelah (6; 1997) saw increased usage in 1998.
  • The name Syrus (6; 1997) saw increased usage in 1997.
  • The name Jason (6; 1997) was probably not affected, but the name of Jason’s girlfriend, Timber, saw increased usage in 1998.
  • The name Amaya (8; 1999) saw sharply increased usage in 1999 and 2000.
  • The name Kaia (8; 1999) saw increased usage in 1999.
  • The name Ruthie (8; 1999) saw increased usage in 1999.
  • The name Aneesa (11; 2002) saw peak usage in 2002.
  • The name Arissa (12; 2002-3) saw peak usage in 2003.
  • The name Brynn (12; 2002-3) saw sharply increased usage in 2003.
  • The name Irulan (12; 2002-3) debuted in the data in 2003.
    • It looks like she was named after the fictional character Princess Irulan from Frank Herbert’s Dune books…?
  • The name Trishelle (12; 2002-3) saw peak usage in 2004.
  • The name Mallory (13; 2003) saw increased usage in 2003 and 2004.
  • The name Cameran (14; 2004) saw peak usage in 2004.
  • The name Jacquese (14; 2004) both returned to the data and saw peak usage in 2004.
  • The name Johanna (16; 2005) saw increased usage in 2005.
  • The name Nehemiah (16; 2005) saw increased usage in 2005 and 2006.
  • The name Janelle (17; 2006) saw increased usage in 2006.
  • The name Svetlana (17; 2006) saw peak usage in 2007.
  • The name Colie (18; 2006-7) both returned to the data and saw peak usage in 2007.
  • The name Tyrie (18; 2006-7) saw peak usage in 2007.
  • The name of Tyrie’s girlfriend, Jazalle, debuted in 2007 and is a one-hit wonder so far.
  • The name Kellyanne (19; 2007-8) returned to the data in 2008.
  • The name Baya (21; 2009) saw sharply increased usage in 2009. In fact, Baya was one of the fastest-rising baby names of 2009.
  • The name Averey (28; 2013) saw peak usage in 2013.
  • The name Kassius (32; 2016-17) saw increased usage in 2017.

Of all the names above, which one(s) do you like most?

And, for all the Real World fans out there: which season(s) do you like most? :)

Source: The Real World (TV series) – Wikipedia

Popular Baby Names in Casper, WY, in 2020

In 2020, the Wyoming Medical Center in Casper welcomed 892 babies. The names of about 620 of these babies were shared online via the hospital’s website. A few days ago, the hospital “mined those announcements for our most popular names list for 2020,” finding that the most frequently occurring names for girls was Paisley and for boys was Jackson.

I don’t usually post rankings from non-governmental sources, but, in this case, there were just so many names in comparison to the size of the city (about 58,000 residents) that I decided to go ahead and publish the full list…

10 babies named:

  • Jackson (Jaxen, Jaxon, Jaxson, Jaxxon)

7 babies named:

  • Logan
  • Oliver
  • Paisley (Paizlee, Paizleigh)

6 babies named:

  • Adaline (Adeline, Adalyn, Adalynn, Addilynn)
  • Amelia (Emelia, Emilia)
  • Emma
  • Grayson
  • Reilly (Rieleigh, Riely, Riley, Ryleigh)
  • Sawyer

5 babies named:

  • Cooper
  • Everlee (Everleigh, Everly)
  • Oakleigh (Oakley)
  • Theodore

4 babies named:

  • Addison (Addyson)
  • Asher
  • Ava
  • Benjamin
  • Caysen (Kasen, Kason)
  • Charlie (Charlee, Charles)
  • Everette
  • Isabella (Izabella, Izzabella)
  • Kinsleigh (Kinsley)
  • Nathan
  • Wyatt

3 babies named:

Adrian, Alexander, Ashton (Ashtyn), Aspen, Aurora, Bennett, Blake (Blayke), Bristol, Brixley (Brixleigh, Brixli), Brooklyn, Carter, Christian, David, Declan (Deklynn), Elijah, Elizabeth, Ella, Ellie, Ethan, Ezra, Grace, Hunter, Holden, Jack, Layla, Leo, Liam, Lyla (Lilah), Lincoln, Lorenzo, Lydia, Lyra, Mason, Noah, Olivia, Owen, Richard, Rilynn (Ryelin, Ryelynn), Rowan (Rowen), Ryker, Skyla, Sophia (Sofia)

2 babies named:

Aiden/Aidyn, Allison/Alyson, Amara, Annabelle, Arya, Aubriella, Averie/Avery, Barrett, Bentley, Bodhi/Bodie, Braxton, Bryar/Bryor, Brynlee, Caroline, Carson/Karson, Catherine/Katherine, Colt, Colten/Colton, Damian, Daniel, Daxton, Dayton, Dylan, Eli, Eliana, Elliot, Emerson/Emersyn, Emery/Emory, Evelyn, Finley, Gabriella, Gentry, Harmony, Harper, Harrison, Haven/Hayven, Hayden, Hazel, Hazely/Hazleigh, Henry, Hudson, Ian, Isaac, Isaiah, Islah/Islla, Jasper, Jaxtyn, Jayden, Joel, Julian, Julius, Justin, Kaiser/Kaizer, Kamara, Kaysen/Kayson, Kellen, Kennedi/Kenydee, Kenzlee/Kenzleigh, Kinley/Kynleigh, Kyran/Kyren, Leighton/Leyten, Lenix/Lennox, Levi, Lorelai/Lorelei, Madeline/Madelyn, Malachi, Malaya/Maleah, Maria/Meriah, Maverick, Maya, Mila, Miles, Millie, Naomi, Natalia, Nevaeh, Parker, Paul, Penelope, Rachael/Rachel, Rae/Rey, Raylan, Ronan, Ryder, Samantha, Samuel, Sara/Sarah, Savanna/Savannah, Scarlett, Sebastian, Silas/Sylias, Skylar/Skyler, Spencer, Sydney/Sidney, Tenslee/Tensley, Theo, Weston/Westin, Violet, Zachary, Zoey

1 baby named:

  • Abel, Abraham, Ace, Adam, Adonis, Aeris, Adrian, Aiden, Aksel, Aleassia, Alexandria, Alianna, Allen, Ambrose, Amias, Amiya, Anderson, Angel, Anika, Annalynn, Annie, Anson, Antonina, Archer, Ariella, Ariya, Armando, Arrow, Ashlyn, Athena, Aubree, August, Augustus, Avaianna, Aynslee, Azariah, Azayla
  • Bailey, Baylor, Beau, Becklynn, Bella, Berklie, Bethany, Bonnie, Bradley, Braitton, Branson, Brantley, Braxley, Brayden, Braylee, Brennan, Brexton, Brian, Briggson, Brittany, Brixon, Brock, Broden, Bronx, Brooks, Brylee, Burke
  • Caelan, Cain, Callie, Callum, Calvin, Cameron, Cannon, Carilina, Case, Cash, Charisma, Chasyn, Chloe, Christopher, Ciella, Claire, Cody, Colby, Collyn, Colter, Cree, Crew, Cullen, Cuyler
  • Dailyn, Dakota, Dani, Dean, Delilah, Destin, Diesel, Divine, Douglas, Draco, Draeden
  • Ebony, Eccho, Edison, Eleanor, Elias, Elivia, Ellen, Ellis, Ember, Emily, Emmanuel, Emmie, Emmitt, England, Etta, Evan, Evander, Ezmae
  • Felix, Francis, Fredrick, Freya
  • Genevieve, George, Gideon, Graham, Grey, Griffin
  • Hodassah, Haddie, Hadley, Hailey, Harlan, Harley, Harlow, Harris, Harvey, Hayes, Hendrix, Henleigh
  • Icelynn, Ily, Isabelle, Isaias, Ivan, Ivy, Iylah
  • Jaden, Jaime, Jalin, James, Jameson, Jase, Javier, Jayce, Jaycee, Jayson, Jeremiah, Jessica, Jessie, Jett, JJ, Joanna, John, Jojo, Jolie, Jonah, Jonathan, Josephine, Josie, Joyce, Jude, Julie, June
  • Kade, Kaelyn, Kaiden, Kaii, Kaleah, Kamari, Kambry, Kambryn, Kamdyn, Kane, Karalynn, Kaspian, Kaylee, Kaylynn, Keaton, Keenston, Keira, Kenai, Kendrey, Kevin, Keylin, Khaos, Kieran, Killian, Kimber, Kimora, Kit, Klarke, Kodah, Koen, Kolby, Kole, Korah, Korbyn, Koy, Kyara, Kyden, Kylie, Kyson
  • Lainey, Lakelyn, Lance, Laramie, Laura, Layne, Legend, Lennon, Leopold, Lillian, Lilliean, Lillyanna, Lily, Lola, Londyn, Lorraine, Luca, Lucius, Luke, Lynlee, Lyvie
  • Macie, Macklin, Maddison, Maddox, Mae, Maevelyn, Maggie, Maisey, Mandy, Marceline, Margaret, Mario, Marisa, Marisol, Marleigh, Mary, Mateo, Matthias, Mavis, Maxwell, Mazikeen, Mckenzie, Meadow, Melia, Melody, Merrik, Merritt, Meyer, Mia, Michael, Michelle, Miklo, Milo, Mira, Montana, Myra
  • Nancy, Nash, Natalie, Nathaneil, Naylin, Nehemiah, Nicholas, Nolen, Nora, Nova, Nylin
  • Oaks, Onyx, Oraya, Orian, Orin, Ostara
  • Paxton, Persephone, Presley, Pyper
  • Quincy
  • Rableen, Raeleah, Raven, Reed, Relik, Remi, Remington, Renato, Revi, Rhett, Riatta, Riggs, Rodolfo, Rogan, Roman, Rosalee, Rosemarie, Rowdy, Roxas, Roy, Ruby, Ryann, Ryatt, Ryott
  • Sadie, Sage, Sandra, Saphira, Seraphina, Serenah, Serenity, Shadow, Shelby, Sheridan, Shyanne, Simon, Skadi, Skylynn, Solveig, Sophie, Sorin, Stella, Sterling, Stetley, Storey, Sturgis, Sutton, Sylar, Sylvia
  • Tala, Talia, Tareyn, Tate, Tavin, Taylee, Teagan, Tennyson, Tess, Tessin, Theotis, Thomas, Tillie, Tinlee, Titan, Tobin, Travis, Trenton, Trexton, Tripp, Turner
  • Vada, Vanessa, Vera, Vincent
  • Walker, Watson, Waylon, Westley, Wilder, Wiley, William
  • Xavier, Xia, Xililah, Ximena
  • Yianeli
  • Zachariah, Zaydin, Zayne, Zeppelin, Zinnia, Zoe

Source: Casper’s most popular baby names, 2020 – Wyoming Medical Center

Popular Baby Names in Ireland, 2019

According to data from Ireland’s Central Statistics Office (CSO), the most popular baby names in the country in 2019 were — yet again! — Emily and Jack.

Here are Ireland’s top 10 girl names and top 10 boy names of 2019:

Girl Names

  1. Emily, 452 baby girls
  2. Grace, 426
  3. Fiadh, 334
  4. Sophie, 330
  5. Hannah, 321
  6. Amelia, 315
  7. Ava, 313 (tie)
  8. Ellie, 313 (tie)
  9. Ella, 292
  10. Mia, 289

Boy Names

  1. Jack, 677 baby boys
  2. James, 534
  3. Noah, 502
  4. Conor, 427
  5. Daniel, 399
  6. Adam, 345
  7. Liam, 334
  8. Tadhg, 318
  9. Luke, 317
  10. Charlie, 316

Jack has been the top boy name since 2007 (with the exception of 2016) and Emily has been the top girl name since 2011.

In the girls’ top 10, Hannah returned and Emma dropped out.

In the boys’ top 10, Liam and Tadhg (pronounced tyeg, like the first syllable of “tiger”) replaced Harry and Michael.

The fastest-rising names in the top 100 in terms of numbers of babies were:

  • Éabha (+57 baby girls), Caoimhe (+36), Molly (+32), Erin (+31), Sadhbh (+31)
  • Rían (+69 baby boys), Bobby (+50), Senan (+46), Darragh (+38), Tadhg (+38), Theo (+38)

And the fastest-rising in terms of rank were:

  • Alexandra (+25 spots), Heidi (+20), Hollie (+20), Bonnie (+19), Éabha (+19)
  • Odhrán (+41 spots), Odhran (+39), Eli (+37), Kayden (+30), Ruairí (+27)

Source: Irish Babies’ Names 2019 – CSO