How popular is the baby name Luna 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 Luna.

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Popularity of the baby name Luna


Posts that mention the name Luna

Popular baby names in Belgium, 2021

Flag of Belgium
Flag of Belgium

According to data from Statistics Belgium, the country’s most popular baby names last year were Olivia and Noah.

Here are Belgium’s top 50 girl names and top 50 boy names of 2021:

Girl Names

  1. Olivia, 580 baby girls
  2. Emma, 500
  3. Louise, 455
  4. Mila, 435
  5. Alice, 416
  6. Camille, 403
  7. Lina, 394
  8. Sofia, 359
  9. Ella, 352
  10. Juliette, 346
  11. Nora, 342
  12. Mia, 325
  13. Marie, 317
  14. Lucie, 314
  15. Anna, 303
  16. Jade, 296
  17. Elena, 281
  18. Eva, 280
  19. Julia, 279
  20. Noor, 263
  21. Nina, 256
  22. Léa, 252
  23. Victoria, 249
  24. Chloé, 244
  25. Alix, 235
  26. Lou, 232
  27. Elise, 220
  28. Zoé, 215
  29. Giulia, 212
  30. Ellie, 210 (tie)
  31. Luna, 210 (tie)
  32. Liv, 209
  33. Renée, 207
  34. Amélie, 204
  35. Inaya, 202
  36. Rose, 194
  37. Charlotte, 191
  38. Jeanne, 188 (tie)
  39. Lily, 188 (tie)
  40. Lena, 187
  41. Sara, 176
  42. Manon, 171
  43. Julie, 170
  44. Mona, 160
  45. Alba, 159
  46. Livia, 155
  47. Billie, 154 (tie)
  48. Sophia, 154 (tie)
  49. Amira, 146
  50. Clara, 144 (tie)
  51. Stella, 144 (tie)

Boy Names

  1. Noah, 627 baby boys
  2. Arthur, 584
  3. Louis, 558
  4. Liam, 537
  5. Jules, 526
  6. Adam, 474
  7. Lucas, 426
  8. Gabriel, 422
  9. Victor, 416
  10. Oscar, 336
  11. Leon, 310
  12. Mathis, 294 (tie)
  13. Mohamed, 294 (tie)
  14. Finn, 289
  15. Léon, 275
  16. Matteo, 264
  17. Lewis, 251
  18. Hugo, 245
  19. Nathan, 238
  20. Luca, 234
  21. Elias, 225
  22. Raphaël, 223
  23. Théo, 221
  24. Amir, 217 (tie)
  25. Eden, 217 (tie)
  26. Rayan, 209
  27. Lou, 208
  28. Milo, 205
  29. Yanis, 204
  30. Achille, 201
  31. Otis, 194
  32. Sacha, 191 (tie)
  33. Vic, 191 (tie)
  34. Felix, 190
  35. Marcel, 187
  36. Basile, 185
  37. Aaron, 179
  38. Léo, 178
  39. Maurice, 174
  40. Alexander, 173
  41. Maël, 171
  42. Emiel, 168 (tie)
  43. Georges, 168 (tie)
  44. Jack, 167 (tie)
  45. William, 167 (tie)
  46. Emile, 163 (tie)
  47. Vince, 163 (tie)
  48. Samuel, 161
  49. Gaston, 159
  50. Oliver, 158

If Leon and Léon had been counted as a single name, their combined total (585) would have been enough to edge Arthur (584) out of second place on the boys’ list.

And the gender-neutral name Lou managed to pop up on both lists in nearly the same spot: 26th for girls, 27th for boys.

Map of the three regions of Belgium
Belgium’s three regions

The top baby names within each of Belgium’s three regions were…

Girl NamesBoy Names
Flanders
(57.6% of the population)
Language: Dutch
1. Olivia, 328
2. Ella, 303
3. Marie, 275
4. Mila, 266
5. Nora, 261
1. Noah, 399
2. Arthur, 321
3. Jules, 311
4. Leon, 288
5. Louis, 284
Wallonia
(31.8% of pop.)
Languages: French/German
1. Emma, 204
2. Olivia, 203
3. Louise, 190
4. Alice, 188 (tie)
5. Lucie, 188 (tie)
1. Gabriel, 266
2. Louis, 235
3. Liam, 233
4. Arthur, 208
5. Jules, 191
Brussels-Capital
(10.6% of pop.)
Languages: Dutch/French
1. Lina, 89
2. Sofia, 83
3. Emma, 60 (tie)
4. Nour, 60 (tie)
5. Olivia, 49
1. Mohamed, 118
2. Adam, 112
3. Gabriel, 82
4. Amir, 70
5. Noah, 62

And here’s a selection of names from the other end of the spectrum — names that were given to just 5 babies each in Belgium last year:

Rare Girl NamesRare Boy Names
Anabia, Believe, Caro, Dea, Elaïa, Fallone, Gaby, Heike, Iluna, Jennifer, Kessy, Lyssia, Mahsa, Nihal, Otice, Puck, Queen, Ramla, Siloé, Toos, Vlera, Wassila, Yseult, ZuriAloys, Brandon, Celle, Doruk, Erion, Fedde, Gustav, Hazar, Ilyass, Jip, Karsten, Lothar, Maksim, Nellis, Obi, Paulin, Qays, Riff, Silvio, Tille, Vidar, Wiebe, Yavuz, Zjef

(I’m a little surprised that as many as 5 baby girls in Belgium got the English word “believe” as their first name. I wonder if something specific was influencing that usage…?)

This time around, Belgium also highlighted the girl and boy names that saw the largest increases and decreases in usage over the last decade (2011-2021). The top 5 in each category were…

  • Girl names
    • Largest increases: Alba, Ellie, Ellis, Alya, Cilou
    • Largest decreases: Lisa, Laura, Julie, Lotte, Anaïs
  • Boy names
    • Largest increases: Georges, Lio, Gaston, Otis, Lyam
    • Largest decreases: Maxime, Thomas, Simon, Wout, Nathan

Finally, here’s a link to Belgium’s 2020 rankings, if you’d like to compare.

Sources: First names for boys and girls | STATBEL, Demographics of Belgium – Wikipedia

Image: Adapted from Flag of Belgium (public domain)
Map: Adapted from Regions of Belgium by Ssolbergj under CC BY 3.0.

Popular and unique baby names in Sonoma County (California), 2021

Flag of California
Flag of California

According to the government of Sonoma, California, the most popular baby names in the county last year were Mia and Mateo.

Here are Sonoma’s top 50 girl names and top 50 boy names of 2021:

Girl Names

  1. Mia, 29 baby girls
  2. Olivia, 26
  3. Isabella, 24
  4. Luca, 22
  5. Luna, 21
  6. Gianna, 18
  7. Aurora, 17 (tie)
  8. Emma, 17 (tie)
  9. Eliana, 16 (tie)
  10. Riley, 16 (tie)
  11. Camila, 15
  12. Ava, 14 (4-way tie)
  13. Emilia, 14 (4-way tie)
  14. Madison, 14 (4-way tie)
  15. Zoe, 14 (4-way tie)
  16. Amelia, 13 (4-way tie)
  17. Charlotte, 13 (4-way tie)
  18. Chloe, 13 (4-way tie)
  19. Evelyn, 13 (4-way tie)
  20. Eleanor, 12 (6-way tie)
  21. Harper, 12 (6-way tie)
  22. Isla, 12 (6-way tie)
  23. Maya, 12 (6-way tie)
  24. Mila, 12 (6-way tie)
  25. Sofia, 12 (6-way tie)
  26. Hazel, 11 (4-way tie)
  27. Kennedy, 11 (4-way tie)
  28. Penelope, 11 (4-way tie)
  29. Quinn, 11 (4-way tie)
  30. Liliana, 10 (4-way tie)
  31. Scarlett, 10 (4-way tie)
  32. Violet, 10 (4-way tie)
  33. Ximena, 10 (4-way tie)
  34. Aria, 9 (4-way tie)
  35. Stella, 9 (4-way tie)
  36. Valentina, 9 (4-way tie)
  37. Zoey, 9 (4-way tie)
  38. Alina, 8 (5-way tie)
  39. Avery, 8 (5-way tie)
  40. Cora, 8 (5-way tie)
  41. Elena, 8 (5-way tie)
  42. Remi, 8 (5-way tie)
  43. Ayla, 7 (17-way tie)
  44. Delilah, 7 (17-way tie)
  45. Ella, 7 (17-way tie)
  46. Georgia, 7 (17-way tie)
  47. Grace, 7 (17-way tie)
  48. Josephine, 7 (17-way tie)
  49. Layla, 7 (17-way tie)
  50. Leila, 7 (17-way tie)
  51. Lillian, 7 (17-way tie)
  52. Lucia, 7 (17-way tie)
  53. Mackenzie, 7 (17-way tie)
  54. Madelyn, 7 (17-way tie)
  55. Melanie, 7 (17-way tie)
  56. Naomi, 7 (17-way tie)
  57. Sophia, 7 (17-way tie)
  58. Victoria, 7 (17-way tie)
  59. Vivian, 7 (17-way tie)

Boy Names

  1. Mateo, 38 baby boys
  2. Liam, 29
  3. Noah, 28
  4. James, 23
  5. Oliver, 22
  6. Benjamin, 21
  7. Lucas, 19 (tie)
  8. Sebastian, 19 (tie)
  9. Henry, 17 (4-way tie)
  10. Jack, 17 (4-way tie)
  11. Jacob, 17 (4-way tie)
  12. Julian, 17 (4-way tie)
  13. Hudson, 16 (3-way tie)
  14. Joseph, 16 (3-way tie)
  15. Santiago, 16 (3-way tie)
  16. Gabriel, 15 (tie)
  17. Theodore, 15 (tie)
  18. Daniel, 14 (4-way tie)
  19. Dylan, 14 (4-way tie)
  20. Elijah, 14 (4-way tie)
  21. Samuel, 14 (4-way tie)
  22. Angel, 13 (3-way tie)
  23. Dominic, 13 (3-way tie)
  24. Miles, 13 (3-way tie)
  25. Alexander, 12 (7-way tie)
  26. Anthony, 12 (7-way tie)
  27. Leo, 12 (7-way tie)
  28. Logan, 12 (7-way tie)
  29. Owen, 12 (7-way tie)
  30. River, 12 (7-way tie)
  31. William, 12 (7-way tie)
  32. Adrian, 11 (6-way tie)
  33. David, 11 (6-way tie)
  34. Ethan, 11 (6-way tie)
  35. Jackson, 11 (6-way tie)
  36. Jayden, 11 (6-way tie)
  37. Maverick, 11 (6-way tie)
  38. Asher, 10 (9-way tie)
  39. Beau, 10 (9-way tie)
  40. Elias, 10 (9-way tie)
  41. Hunter, 10 (9-way tie)
  42. Jesus, 10 (9-way tie)
  43. Jose, 10 (9-way tie)
  44. Mason, 10 (9-way tie)
  45. Parker, 10 (9-way tie)
  46. Wyatt, 10 (9-way tie)
  47. Damian, 9 (8-way tie)
  48. Emiliano, 9 (8-way tie)
  49. Ezekiel, 9 (8-way tie)
  50. Finn, 9 (8-way tie)
  51. Giovanni, 9 (8-way tie)
  52. Kai, 9 (8-way tie)
  53. Matias, 9 (8-way tie)
  54. Nicholas, 9 (8-way tie)

And here are some of the baby names that were bestowed just once in Sonoma last year:

Unique Girl NamesUnique Boy Names
Ahsoka, Bowyn, Cordova, Dutton, Eivissa, Fiadh, Galdina, Hanalie, Indira, Jinora, Ketsana, Levaleah, Metzli, Nebula, Odette, Peninaiaiga, Quinnie, Rockella, Sersha, Tallulah, Umi, Vrianna, Wren, Yadelene, ZeyaAxis, Beaudin, Codiak, Delmar, Elymus, Fletcher, Gibb, Herbert, Ilumi, Jonael, Kalais, Lesinali, Maimonides, Neithan, Ozan, Perrin, Ratu, Samarth, Tonalli, Usyk, Ville, Waimea, Xavien, Yamikani, Zabdiel

Some thoughts on a few of the above…

  • Ahsoka is a character from the Star Wars universe.
  • Dutton is the surname of the family featured on the TV show Yellowstone.
  • Sersha looks like a phonetic rendering of Saoirse.
  • Maimonides refers to Moses ben Maimon, a medieval Jewish philosopher.
  • Tonalli is a Nahuatl word that refers to the warmth of the sun (among other things).

The name Sonoma was also given to a single Sonoma County baby in 2021. :)

Finally, here are Sonoma’s 2020 rankings, if you’d like to compare.

Source: Sonoma County Baby Names

Image: Adapted from Flag of California (public domain)

Popular baby names in Puerto Rico, 2021

Flag of Puerto Rico
Flag of 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

Image: Adapted from Flag of Puerto Rico (public domain)

Top lengths of baby names in the U.S., 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 boy 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)