How popular is the baby name Theo in the United States right now? How popular was it historically? Use the popularity graph and data table below to find out! Plus, see 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 England and Wales (UK), 2023

Flag of the United Kingdom
Flag of the United Kingdom

Last year, the countries of England and Wales together welcomed 591,072 babies.

What were the most popular names among these babies? Olivia and Muhammad.

Here are England and Wales’ top 50 girl names and top 50 boy names of 2023:

Girl names

  1. Olivia, 2,906 baby girls
  2. Amelia, 2,663
  3. Isla, 2,337
  4. Lily, 2,290
  5. Freya, 2,086
  6. Ava, 2,050
  7. Ivy, 1,997
  8. Florence, 1,899
  9. Willow, 1,833
  10. Isabella, 1,795
  11. Poppy, 1,755
    • Poppy ranked third among baby girls born in November specifically, no doubt because of the association between poppies and Remembrance Day (Nov. 11).
  12. Sophia, 1,679
  13. Evelyn, 1,673
  14. Elsie, 1,662
  15. Sienna, 1,657
  16. Mia, 1,640
  17. Daisy, 1,585
  18. Grace, 1,541
  19. Sofia, 1,514
  20. Phoebe, 1,510
  21. Rosie, 1,508
  22. Harper, 1,466
  23. Charlotte, 1,373
  24. Evie, 1,350
  25. Millie, 1,349
  26. Bonnie, 1,346
  27. Ella, 1,307
  28. Emily, 1,280
  29. Maya, 1,255
  30. Matilda, 1,212
  31. Aria, 1,198
  32. Delilah, 1,194
  33. Penelope, 1,156
  34. Hallie, 1,154
  35. Mila, 1,127
  36. Maeve, 1,114
  37. Ada, 1,089
  38. Luna, 1,063
  39. Ruby, 1,059
  40. Mabel, 1,051
  41. Maisie, 1,039
  42. Violet, 1,034
  43. Arabella, 1,029
  44. Margot, 1,025
  45. Emilia, 1,017
  46. Isabelle, 984
  47. Esme, 982
  48. Lottie, 980
  49. Aurora, 964
  50. Alice, 955

Boy names

  1. Muhammad, 4,661 baby boys
  2. Noah, 4,382
  3. Oliver, 3,556
  4. George, 3,494
  5. Leo, 3,416
  6. Arthur, 3,387
  7. Luca, 3,195
  8. Theodore, 2,666
  9. Oscar, 2,632
  10. Henry, 2,490
  11. Theo, 2,489
  12. Freddie, 2,481
  13. Archie, 2,400
  14. Arlo, 2,253
  15. Jude, 2,177
  16. Alfie, 2,111
  17. Charlie, 2,010
  18. Jack, 1,953
  19. Thomas, 1,855
  20. Finley, 1,844
  21. Harry, 1,799
  22. Albie, 1,756
  23. Teddy, 1,687
  24. Jacob, 1,655
  25. Lucas, 1,644
  26. Tommy, 1,629
  27. Isaac, 1,611
  28. Mohammed, 1,601
  29. William, 1,544
  30. Edward, 1,501
  31. Elijah, 1,482
  32. Roman, 1,481
  33. Rory, 1,468
  34. Alexander, 1,456
  35. James, 1,430
  36. Louie, 1,421
  37. Reuben, 1,356
  38. Ezra, 1,345
  39. Oakley, 1,343
  40. Joshua, 1,339
  41. Adam, 1,326
  42. Sebastian, 1,313
  43. Hudson, 1,291
  44. Max, 1,274
  45. Louis, 1,236
  46. Ronnie, 1,222
  47. Ethan, 1,198
  48. Hugo, 1,174
  49. Harrison, 1,151
  50. Mason, 1,118

In the girls’ top 10, Willow replaced Mia.

In the boys’ top 10, Luca and Henry replaced Theo and Freddie.

New to the girls’ top 100 were Hazel, Lilah, Autumn, Nevaeh, and Raya.

New to the boys’ top 100 were Jax, Enzo, and Bodhi.

The number of hyphenated girl names increased significantly (from 12,332 to 19,143), while the number of hyphenated boy names decreased slightly (from 3,140 to 2,807).

And here’s a selection of uncommon names that were given to just three babies each in England and Wales (combined) in 2023:

Rare girl namesRare boy names
Alfia, Bluebella, Buddug, Coni, Dolcy, Ephelia, Fen, Glesni, Harasees, Indica, Jodh, Khulood, Larnie, Myrto, Nectaria, Omuwa, Pip, Qiraat, Reevie, Sorrel, Tegwen, Udaina, Vani, Waverly, Xanthea, Yvaine, ZoellaApollon, Banksy, Blaidd, Catalin, Dishan, Eifion, Fayzan, Gurvir, Haaland, Iverson, Jibriel, Kirtan, Lucho, Monaco, Nalan, Orwell, Prevail, Qusay, Ranbir, Sebbie, Tassilo, Ulrich, Vedh, Wildan, Xavian, Yamac, Zuko

Possible explanations/associations for several of the above:

  • Blaidd means “wolf” in Welsh. (It’s also the name of a half-wolf character in the 2022 video game Elden Ring.)
  • Buddug is based on the Welsh word budd, which means “benefit, profit.” It’s the Welsh equivalent of Boudicca (the name of the ancient British queen who led a revolt against the Romans).
  • Fen might refer to the type of wetland.
  • Glesni means “blueness” or “greenness” in Welsh.
  • Haaland is the surname of Norwegian soccer player Erling Haaland (who currently plays for Manchester City F.C.).

Here are the 2023 rankings for Scotland and Northern Ireland — the other two countries in the United Kingdom — and the 2022 rankings for England and Wales, if you’d like to compare last year to the year before.

Sources:

Image: Adapted from Flag of the United Kingdom (public domain)

Top baby names in Germany, 2023

Flag of Germany
Flag of Germany

Last year, the Central European country of Germany welcomed 692,989 babies.

What were the most popular names among these babies?

We don’t know for sure, because Germany doesn’t release official baby name rankings. But two unofficial sets of rankings — one from the Society for the German Language (GfdS), the other from name researcher Knud Bielefeld — agree that Germany’s top boy name of 2023 was Noah.

(The rankings by the GfdS account for over 90% of the first names bestowed in Germany in 2023, while the rankings by Bielefeld account for about 40% of the babies born in Germany in 2023. Both sets of rankings combine different spellings of the same name.)

Here are Germany’s top girl names, according to both sources:

Girl names (GfdS)Girl names (Bielefeld)
1Sophia/SofiaEmilia
2EmiliaEmma
3EmmaSophia
4MiaHannah
5Hannah/HannaMia
6MilaElla
7LinaMila
8EllaLina
9Klara/ClaraLia
10Lia/LiahLeni

And here are Germany’s top boy names, according to both sources:

Boy names (GfdS)Boy names (Bielefeld)
1NoahNoah
2Matteo/Mattheo/Mateo/MatheoMatteo
3LeonElias
4PaulLeon
5EmilPaul
6Luca/LukaTheo
7Henry/HenriLuca
8EliasFinn
9Louis/LuisLiam
10LiamEmil

Finally, here are Germany’s top names of 2022, if you’d like to compare last year to the year before.

Sources:

Image: Adapted from Flag of Germany (public domain)

Popular and unique baby names in Austria, 2023

Flag of Austria
Flag of Austria

Last year, the European country of Austria welcomed 77,605 babies — 37,596 girls and 40,009 boys.

What were the most popular names among these babies? Emilia and Paul.

Here are Austria’s top 50 girl names and top 50 boy names of 2023:

Girl names

  1. Emilia, 638 baby girls
  2. Marie, 554
  3. Emma, 517
  4. Anna, 514
  5. Mia, 509
  6. Sophia, 471
  7. Valentina, 446
  8. Lena, 434
  9. Lea, 427
  10. Laura, 420
  11. Johanna, 413
  12. Lina, 412
  13. Leonie, 387
  14. Sophie, 381
  15. Hannah, 363
  16. Luisa, 362
  17. Ella, 345
  18. Olivia, 334
  19. Lara, 332
  20. Elena, 318
  21. Nora, 312
  22. Magdalena, 273
  23. Amelie, 268
  24. Mila, 264
  25. Antonia, 262
  26. Helena, 260
  27. Hanna, 252
  28. Lia, 240
  29. Valerie, 236
  30. Isabella, 223
  31. Katharina, 215 (tie)
  32. Sarah, 215 (tie)
  33. Sara, 209
  34. Klara, 207
  35. Theresa, 199
  36. Ida, 195 (tie)
  37. Miriam, 195 (tie)
  38. Elisa, 193
  39. Rosa, 191 (tie)
  40. Sofia, 191 (tie)
  41. Julia, 190
  42. Alina, 186
  43. Elina, 182
  44. Marlene, 181 (tie)
  45. Paula, 181 (tie)
  46. Paulina, 180
  47. Livia, 179
  48. Emily, 176
  49. Clara, 173
  50. Rosalie, 162

Boy names

  1. Paul, 687 baby boys
  2. Jakob, 660
  3. Elias, 625
  4. Maximilian, 620
  5. Felix, 596
  6. Noah, 577
  7. Leon, 572
  8. David, 535
  9. Tobias, 528
  10. Jonas, 520
  11. Leo, 506
  12. Lukas, 484
  13. Moritz, 447
  14. Matteo, 411
  15. Alexander, 406
  16. Theo, 397
  17. Anton, 389
  18. Fabian, 385
  19. Liam, 374
  20. Julian, 369
  21. Simon, 363
  22. Emil, 350
  23. Valentin, 337
  24. Luca, 320
  25. Florian, 315
  26. Matthias, 313
  27. Samuel, 308
  28. Johannes, 283
  29. Gabriel, 279 (tie)
  30. Raphael, 279 (tie)
  31. Lorenz, 272 (tie)
  32. Luis, 272 (tie)
  33. Theodor, 263
  34. Benjamin, 251
  35. Sebastian, 222
  36. Oskar, 216
  37. Niklas, 215
  38. Levi, 213
  39. Finn, 209
  40. Emilio, 207 (tie)
  41. Jonathan, 207 (tie)
  42. Adam, 206 (tie)
  43. Michael, 206 (tie)
  44. Ben, 201
  45. Oliver, 200
  46. Fabio, 193
  47. Mateo, 191
  48. Konstantin, 189 (tie)
  49. Max, 189 (tie)
  50. Luka, 183

In the boys’ top 100 were Ferdinand (60th), Erik (75th), Clemens (84th), and Muhammed (95th).

In the girls’ top 100 were Aurelia (61st), Frida (78th), Mathea (83rd), and Lotta (92nd).

Lower down in the rankings I spotted…

  • Girl names:
    • Finja (53 babies)
    • Dunja (22) – means “quince” in several South Slavic languages
    • Florentine (10)
    • Pelin (8) – means “wormwood” in Turkish
    • Neele (6)
    • Hannelore (4)
    • Philia (3)
  • Boy names:
    • Fridolin (184 babies)
    • Nepomuk (6) – refers to St. John of Nepomuk
    • Amadeus (4)
    • Thorin (4)
    • Atdhe (3) – means “fatherland” in Albanian
    • Pirmin (3) – refers to St. Pirmin
    • Toprak (2) – means “earth, soil,” “land,” or “country” in Turkish

Thousands of other names were given to a single baby each in Austria last year. Here’s a selection of the names that were bestowed just once:

Unique girl namesUnique boy names
Aristhea, Berivan, Cleophea, Diola, Elfriede, Fancy, Filianore, Galia, Helly, Irmlind, Julita, Katalia, Lysithea, Mitravinda, Nihira, Orbita, Priska, Qunut, Rudolfina, Silke, Thabea, Uresa, Valina, Weiyu, Xena, Ylenia, ZilliAnadin, Bendix, Crown, Dastan, Elino, Frowin, Guntram, Hannan, Itgelt, Jaryl, Kordian, Lambert, Medardus, Metatron, Nainoa, Oswald, Pim, Qibin, Reinhold, Siegfried, Torger, Uriel, Volodymyr, Willibald, Xichen, Yuzuru, Zinar

Some possible influences/associations for a few of the above:

  • Filianore is a character in the video game Dark Souls III (2016) — specifically, in the downloadable content pack Dark Souls III: The Ringed City (2017).
  • St. Frowin of Engelberg was a 12th-century Swiss German abbot.
  • Itgelt is likely based on the Mongolian word itgel, meaning “faith, belief.”
  • Kordian is the main character of the Polish drama Kordian (1834) by Juliusz Slowacki.
  • Lysithea refers to several figures in Greek mythology, as well as to a character in the video game Fire Emblem: Three Houses (2019).
  • Metatron is an archangel mentioned in Jewish folklore.
  • Volodymyr Zelenskyy is the president of Ukraine.
  • St. Willibald was an 8th-century Englishman who became a bishop in Bavaria.

Finally, here’s a link to Austria’s 2022 rankings, if you’d like to compare last year to the year before.

Sources: First names of newborns – Statistics Austria (in German), Atlas der Vornamen – Statistics Austria, Demographic characteristics of newborns – Statistics Austria, Behind the Name, Wiktionary

Image: Adapted from Flag of Austria (public domain)

Popular baby names in Switzerland, 2023

Flag of Switzerland
Flag of Switzerland

Last year, the European country of Switzerland welcomed 80,024 babies.

What were the most popular names among these babies? Mia and Noah.

Here are Switzerland’s top 50+ girl names and top 50 boy names of 2023:

Girl names

  1. Mia, 380 baby girls
  2. Emma, 376
  3. Sofia, 358
  4. Emilia, 313
  5. Elena, 286
  6. Lia, 260 (tie)
  7. Olivia, 260 (tie)
  8. Lina, 259
  9. Nora, 240
  10. Mila, 239
  11. Ella, 208
  12. Lara, 207
  13. Lena, 202
  14. Luna, 200
  15. Lea, 196
  16. Malea, 194
  17. Anna, 192
  18. Alice, 191 (3-way tie)
  19. Sophia, 191 (3-way tie)
  20. Valentina, 191 (3-way tie)
  21. Yara, 188
  22. Elina, 183
  23. Nina, 182
  24. Alina, 181
  25. Leonie, 178
  26. Aurora, 176
  27. Giulia, 172
  28. Chiara, 170
  29. Eva, 164
  30. Elin, 162 (3-way tie)
  31. Julia, 162 (3-way tie)
  32. Laura, 162 (3-way tie)
  33. Amelia, 156 (tie)
  34. Emily, 156 (tie)
  35. Livia, 155
  36. Luana, 154
  37. Sophie, 147
  38. Alma, 145
  39. Maria, 133
  40. Elisa, 131
  41. Juna, 130
  42. Sara, 126
  43. Yuna, 125
  44. Zoé, 124
  45. Dua, 120
  46. Ayla, 118 (tie)
  47. Clara, 118 (tie)
  48. Malia, 117 (tie)
  49. Mara, 117 (tie)
  50. Inaya, 114 (4-way tie)
  51. Jana, 114 (4-way tie)
  52. Lou, 114 (4-way tie)
  53. Victoria, 114 (4-way tie)

Boy names

  1. Noah, 495 baby boys
  2. Liam, 442
  3. Matteo, 362
  4. Gabriel, 284
  5. Leano, 282
  6. Leo, 273
  7. Luca, 271
  8. Leon, 255
  9. Elias, 246
  10. Lio, 245
  11. Louis, 241
  12. Nino, 201
  13. Leonardo, 196
  14. Aaron, 193
  15. Ben, 189
  16. Elio, 187
  17. Elia, 186
  18. Theo, 182
  19. Luan, 180 (tie)
  20. Samuel, 180 (tie)
  21. David, 173 (tie)
  22. Levi, 173 (tie)
  23. Livio, 172
  24. Malik, 168
  25. Mateo, 166
  26. Nico, 161
  27. Arthur, 160
  28. Adam, 158 (tie)
  29. Lian, 158 (tie)
  30. Leandro, 157
  31. Diego, 155
  32. Julian, 151
  33. Finn, 150 (tie)
  34. Mattia, 150 (tie)
  35. Noé, 146
  36. Emil, 143 (tie)
  37. Enea, 143 (tie)
  38. Nael, 141
  39. Mael, 140
  40. Levin, 138
  41. Oliver, 137
  42. Milo, 133
  43. Kian, 132
  44. Rayan, 131
  45. Enzo, 130
  46. Daniel, 129 (tie)
  47. Robin, 129 (tie)
  48. Emilio, 126 (tie)
  49. Lino, 126 (tie)
  50. Lucas, 124

The girls’ top 100 included Lynn (65th), Amira (76th), Kiara (89th), and Aurelia (94th).

The boys’ top 100 included Laurin (58th), Nevio (72nd), Andrin (88th), and Nils (93rd).

Switzerland has four national languages: German, French, Italian, and Romansh. Here are the top baby names among the speakers of each of these languages:

Girl namesBoy names
German speakers
(62.3% of the population)
1. Mia, 289
2. Emilia, 287
3. Sofia, 249
1. Noah, 323
2. Matteo, 282
3. Liam, 279
French speakers
(22.8% of pop.)
1. Emma, 125
2. Olivia, 103
3. Alice, 94
1. Noah, 143
2. Gabriel, 140
3. Liam, 139
Italian speakers
(8.0% of pop.)
1. Emma, 25
2. Aurora, 24
3. Ginevra/Sofia, 21 each
1. Leonardo, 38
2. Noah, 28
3. Enea, 26
Romansh speakers
(0.5% of pop.)
1. Amalia/Gianna/Hannah, 2 each1. Mauro, 4
2. Luca/Nino, 3 each

And here’s a selection of uncommon names that were given to just two babies each in Switzerland in 2023:

Rare girl names Rare boy names
Aulona, Binja, Colombe, Dorela, Elsi, Flutra, Geraldine, Helbest, Ikonija, Joanna, Katia, Lorenza, Monika, Nephele, Orlane, Palmyre, Rivka, Sira, Théodora, Ursina, Vinia, Winnie, Yma, ZerinAlerio, Brusk, Clovis, Décio, Elimelech, Fiete, Glen, Hanno, Ishan, Jigdel, Kenneth, Lulzim, Matty, Nordhen, Ousmane, Pieter, Rolf, Sherwin, Tristán, Urs, Vinzent, Waylon, Yonah, Zayon

Helbest is a Kurdish word meaning “poem,” while Lulzim is based on an Albanian verb meaning “to bloom,” “to flourish.”

Finally, here are Switzerland’s 2022 rankings, if you’d like to compare last year to the year before.

Sources: First names of newborns – Federal Statistical Office, Languages of Switzerland – Wikipedia, Wiktionary

Image: Adapted from Flag of Switzerland (public domain)