How popular is the baby name Luna 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 Luna.

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Popularity of the Baby Name Luna


Posts that Mention the Name Luna

Popular baby names in Puerto Rico, 2021

Puerto Rico

According to the U.S. Social Security Administration, the most popular baby names in Puerto Rico last year were Valentina and Liam.

Here are Puerto Rico’s top 10 girl names and top 10 boy names of 2021:

Girl Names

  1. Valentina, 197 baby girls
  2. Emma, 153
  3. Victoria, 128
  4. Amaia, 116
  5. Luna, 114
  6. Isabella, 102
  7. Gianna, 93
  8. Mia, 90
  9. Catalina, 88
  10. Milena, 87

Boy Names

  1. Liam, 260 baby boys
  2. Thiago, 200
  3. Sebastian, 196
  4. Noah, 180
  5. Dylan, 165
  6. Mateo, 164
  7. Lucas, 161
  8. Adrian, 140
  9. Ian, 131
  10. Jayden, 116

In the girls’ top 10, Milena replaced Kamila.

In the boys’ top 10, Adrian replaced Matias.

In 2020, the top names in Puerto Rico were also Valentina and Liam.

And the most popular baby names in all other U.S. territories — American Samoa, Guam, U.S. Virgin Islands, and Northern Mariana Islands (combined) — in 2021 were Isla/Olivia (tie) and Ethan.

Source: Popular Names by Territory

Top lengths of baby names in the United States, 2021

Which lengths were the most and least popular for U.S. baby names in 2021?

Top length for girl names: 6 letters

For baby girls, the most-used length was 6 letters, followed by 5 and 7.

Graph of length popularity for U.S. baby girl names, 2021

The most popular girl names per length were…

  • 2 letters (over 200 baby girls): Bo, Jo, Zo, An, Vy, Io
  • 3 letters (over 58,300): Ava, Mia, Zoe, Ivy, Eva, Ada
  • 4 letters (over 223,800): Emma, Luna, Ella, Aria, Mila, Nora
  • 5 letters (over 348,000): Sofia, Avery, Emily, Chloe, Layla, Hazel
  • 6 letters (over 466,100): Olivia, Amelia, Sophia, Evelyn, Harper, Camila
  • 7 letters (over 307,900): Eleanor, Abigail, Madison, Addison, Lillian, Paisley
  • 8 letters (over 142,000): Isabella, Scarlett, Penelope, Victoria, Brooklyn, Savannah
  • 9 letters (over 71,800): Charlotte, Elizabeth, Valentina, Josephine, Gabriella
  • 10 letters (over 8,000): Evangeline, Alexandria, Alessandra, Jacqueline
  • 11 letters (over 300): Christianna, Ameliagrace, Anavictoria
  • 12 letters (under 100)
  • 13 letters (over 100)
  • 14 letters (under 100)
  • 15 letters (none)

Top length for boy names: 6 letters

For baby boys, the most-used length was also 6 letters, followed by 5 and 4.

Graph of length popularity for U.S. baby boy names, 2021

The most popular girl names per length were…

  • 2 letters (over 1,800 baby boys): Bo, Ty, Om, Aj, Cy, Oz
  • 3 letters (over 49,200): Leo, Eli, Kai, Ian, Ace, Max
  • 4 letters (over 288,800): Liam, Noah, Jack, Levi, Owen, John
  • 5 letters (over 453,200): James, Lucas, Henry, Mateo, Mason, Ethan
  • 6 letters (over 511,800): Oliver, Elijah, Daniel, Samuel, Joseph, Julian
  • 7 letters (over 269,000): William, Jackson, Michael, Grayson, Matthew, Gabriel
  • 8 letters (over 106,100): Benjamin, Theodore, Maverick, Santiago, Jonathan, Jeremiah
  • 9 letters (over 42,000): Alexander, Sebastian, Christian, Nathaniel, Alejandro
  • 10 letters (over 3,700): Maximilian, Alessandro, Kristopher, Montgomery
  • 11 letters (over 7,800): Christopher, Maximiliano, Constantine
  • 12 letters (over 200)
  • 13 letters (over 100)
  • 14 letters (under 100)
  • 15 letters (under 100)

Top first letters of baby names in the United States, 2021

Which first letters were the most and least popular for U.S. baby names in 2021?

Top first letters for girl names: A, E, M

For baby girls, the most-used first letter was A, followed by E and M. The least-used first letter was U.

Graph of first letter popularity for U.S. baby girl names, 2021

The most popular girl names per letter were…

  • A-names (over 273,100 baby girls): Amelia, Ava, Abigail, Avery, Aria, Aurora
  • B-names (over 49,300): Brooklyn, Bella, Brielle, Blakely, Bailey, Brianna
  • C-names (over 93,100): Charlotte, Camila, Chloe, Claire, Caroline, Cora
  • D-names (over 40,300): Delilah, Daisy, Diana, Daniela, Delaney, Dakota
  • E-names (over 155,300): Emma, Evelyn, Elizabeth, Eleanor, Ella, Emily
  • F-names (over 16,500): Freya, Faith, Finley, Fiona, Fatima, Frances
  • G-names (over 42,900): Gianna, Grace, Genesis, Gabriella, Genevieve, Georgia
  • H-names (over 54,900): Harper, Hazel, Hannah, Hailey, Hadley, Harmony
  • I-names (over 44,100): Isabella, Isla, Ivy, Iris, Isabelle, Isabel
  • J-names (over 73,500): Josephine, Jade, Julia, Josie, Juniper, Jasmine
  • K-names (over 89,100): Kinsley, Kennedy, Kaylee, Kehlani, Katherine, Kylie
  • L-names (over 115,300): Luna, Layla, Lily, Leah, Lucy, Lillian
  • M-names (over 143,500): Mia, Mila, Madison, Maya, Madelyn, Madeline
  • N-names (over 58,800): Nora, Nova, Naomi, Natalie, Natalia, Nevaeh
  • O-names (over 30,200): Olivia, Olive, Oakley, Oaklynn, Octavia, Ophelia
  • P-names (over 37,600): Penelope, Paisley, Piper, Peyton, Parker, Presley
  • Q-names (over 4,100): Quinn, Quincy, Queen, Quinley, Quetzalli, Quinnley
  • R-names (over 74,800): Riley, Ruby, Rylee, Raelynn, Rose, Remi
  • S-names (over 116,400): Sophia, Sofia, Scarlett, Stella, Savannah, Skylar
  • T-names (over 24,200): Taylor, Teagan, Trinity, Tatum, Tessa, Talia
  • U-names (over 600): Unique, Uma, Ulani, Una, Unknown, Unity
  • V-names (over 32,400): Violet, Victoria, Valentina, Vivian, Valerie, Valeria
  • W-names (over 14,700): Willow, Wren, Winter, Wynter, Willa, Wrenley
  • X-names (over 4,500): Ximena, Xiomara, Xyla, Xena, Xochitl, Xitlali
  • Y-names (over 7,600): Yaretzi, Yara, Yareli, Yasmin, Yamileth, Yuna
  • Z-names (over 29,100): Zoey, Zoe, Zuri, Zara, Zariah, Zelda

Top first letters for boy names: J, A, L

For baby boys, the most-used first letter was J, followed by A and L. The least-used first letter was U.

Graph of first letter popularity for U.S. baby boy names, 2021

The most popular boy names per letter were…

  • A-names (over 178,600 baby boys): Alexander, Asher, Aiden, Anthony, Andrew, Adrian
  • B-names (over 86,600): Benjamin, Brooks, Bennett, Beau, Bryson, Brayden
  • C-names (over 123,000): Carter, Charles, Caleb, Christopher, Cameron, Cooper
  • D-names (over 85,000): Daniel, David, Dylan, Dominic, Declan, Damian
  • E-names (over 108,700): Elijah, Ethan, Ezra, Elias, Ezekiel, Eli
  • F-names (over 20,500): Finn, Felix, Finley, Francisco, Fernando, Finnegan
  • G-names (over 53,500): Grayson, Gabriel, Greyson, Gael, Giovanni, George
  • H-names (over 50,000): Henry, Hudson, Hunter, Harrison, Hayden, Hayes
  • I-names (over 31,500): Isaac, Isaiah, Ian, Ivan, Israel, Ismael
  • J-names (over 202,800): James, Jack, Jackson, Jacob, John, Joseph
  • K-names (over 93,400): Kai, Kayden, Kingston, Kaiden, Kevin, King
  • L-names (over 133,400): Liam, Lucas, Levi, Logan, Leo, Luke
  • M-names (over 126,700): Mateo, Michael, Mason, Matthew, Maverick, Miles
  • N-names (over 57,400): Noah, Nathan, Nolan, Nicholas, Nathaniel, Nicolas
  • O-names (over 38,800): Oliver, Owen, Oscar, Omar, Orion, Odin
  • P-names (over 23,700): Parker, Patrick, Peter, Preston, Phoenix, Paxton
  • Q-names (over 3,100): Quinn, Quentin, Quincy, Quinton, Quintin, Quinten
  • R-names (over 82,800): Ryan, Roman, Robert, Rowan, River, Ryder
  • S-names (over 70,300): Sebastian, Samuel, Santiago, Silas, Sawyer, Steven
  • T-names (over 59,200): Theodore, Thomas, Thiago, Theo, Tyler, Tucker
  • U-names (over 2,500): Uriel, Uriah, Ulises, Ulysses, Uziel, Umar
  • V-names (over 11,000): Vincent, Victor, Valentino, Vincenzo, Vicente, Vihaan
  • W-names (over 49,100): William, Wyatt, Waylon, Wesley, Weston, Walker
  • X-names (over 7,200): Xavier, Xander, Xzavier, Xavion, Xavien, Xavian
  • Y-names (over 8,200): Yusuf, Yosef, Yehuda, Yousef, Yahir, Yisroel
  • Z-names (over 26,900): Zion, Zachary, Zayden, Zane, Zayn, Zander

Rising girl names in the United States, 2021

Which girl names increased in usage the most from 2020 to 2021?

Here’s a table of the fastest-rising girl names of 2021. On the left are the top 25 increases in terms of absolute numbers of babies, and on the right are the top 25 increases in terms of relative numbers of babies.

RankGirl nameAbsolute riseGirl nameRelative rise
1Isla950Thyri1,033%
2Willow766Xaila800%
3Eleanor693Esmeray586%
4Nora674Melek547%
5Maeve603Enola500%
6Leilani584Kaileen475%
7Eloise569Ivoree400%
8Ivy551Eveny400%
9Ayla544Kove400%
10Nova537Yomii350%
11Hazel 477Salah317%
12Oaklynn405Zeanna317%
13Oakley398Bloom290%
14Iris397Jasira280%
15Lainey374Ayzel267%
16Wren361Janari260%
17Violet360Khylani260%
18Lily357Yomi260%
19Raya357Aylee257%
20Luna355Aara257%
21Eliana355Jehilyn256%
22Daphne348Evren256%
23Stevie345Zohemy255%
24Sage344Lilibeth254%
25Magnolia339Haisleigh*250%

*Also at 250%, were Lakeyn, Nimrat, Vamika, and Zienna.

Some possible explanations…

  • Thyri is a character on the TV series Vikings.
  • “Yomii” is a song by rapper Moneybagg Yo (lyric: “Let’s have a lil’ girl and name her Yomii”).
  • Raya is the title character in the Disney movie Raya and the Last Dragon (2021).
  • Lilibeth is very close to Lilibet, the name of the daughter (b. June 2021) of Prince Harry and Meghan Markle.

If you can explain any of the other rises, please leave a comment!

Popular baby names in Northern Territory (Australia), 2021

northern territory

According to the government of Northern Territory, Australia, the most popular baby names in NT in 2021 were Isla and Charlie.

Here are Northern Territory’s top 10+ girl names and top 10 boy names of 2021:

Girl Names

  1. Isla, 15 baby girls
  2. Ivy, 14
  3. Amelia, 12 (3-way tie)
  4. Ava, 12 (3-way tie)
  5. Charlotte, 12 (3-way tie)
  6. Hazel, 11 (3-way tie)
  7. Matilda, 11 (3-way tie)
  8. Mia, 11 (3-way tie)
  9. Florence, 9 (5-way tie)
  10. Harper, 9 (5-way tie)
  11. Lily, 9 (5-way tie)
  12. Luna, 9 (5-way tie)
  13. Olivia, 9 (5-way tie)

Boy Names

  1. Charlie, 16 baby boys
  2. Jack, 15
  3. James, 14 (tie)
  4. Noah, 14 (tie)
  5. Elijah, 13 (tie)
  6. Luca, 13 (tie)
  7. Lucas, 12 (3-way tie)
  8. Oliver, 12 (3-way tie)
  9. Thomas, 12 (3-way tie)
  10. Michael, 11

The names Ezekiel, Florence, Luna, Frankie and Archie all “broke into the Territory’s top-40 names for the first time” last year.

In 2020, the top two names in NT were Charlotte and William.

Sources: Popular Baby Names – NT.gov.au, Northern Territory’s most popular baby names for 2021 revealed