How popular is the baby name Kaja 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 Kaja.

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Popularity of the baby name Kaja


Posts that mention the name Kaja

Popular baby names in Denmark, 2024

Flag of Denmark
Flag of Denmark

Last year, the Scandinavian country of Denmark welcomed 57,079 babies.

What were the most popular names among these babies? Emma and Oscar.

Here are Denmark’s top 50 girl names and top 50 boy names of 2024:

Girl names

  1. Emma, 445 baby girls
  2. Ella, 437
  3. Luna, 423
  4. Alma, 415
  5. Frida, 408
  6. Olivia, 390
  7. Ida, 387
  8. Agnes, 382
  9. Karla, 379
  10. Nora, 373
  11. Sofia, 367
  12. Ellie, 351 (tie)
  13. Lily, 351 (tie)
  14. Freja, 348
  15. Clara, 302
  16. Asta, 296
  17. Anna, 294
  18. Alberte, 276
  19. Esther, 260
  20. Ellen, 256
  21. Aya, 231
  22. Astrid, 227
  23. Isabella, 220
  24. Josefine, 201
  25. Leonora, 199
  26. Hannah, 198 (tie)
  27. Lærke, 198 (tie)
  28. Vilma, 198
  29. Saga, 193
  30. Laura, 187
  31. Vera, 182
  32. Mathilde, 178
  33. Emily, 176
  34. Ingrid, 174
  35. Mille, 173
  36. Maja, 166 (tie)
  37. Marie, 166 (tie)
  38. Elina, 163 (tie)
  39. Liva, 163 (tie)
  40. Solvej, 161
  41. Liv, 156
  42. Eva, 153
  43. Merle, 147
  44. Victoria, 146
  45. Andrea, 145
  46. Molly, 140
  47. Kaja, 138 (3-way tie)
  48. Lea, 138 (3-way tie)
  49. Søs, 138 (3-way tie)
  50. Gry, 137

Boy names

  1. Oscar, 483 baby boys
  2. Carl, 466
  3. William, 457
  4. Noah, 440
  5. August, 437
  6. Aksel, 429
  7. Emil, 428
  8. Oliver, 423
  9. Alfred, 414
  10. Theo, 393
  11. Elliot, 378
  12. Malthe, 361
  13. Hugo, 356
  14. Arthur, 354
  15. Valdemar, 347
  16. Elias, 335
  17. Otto, 334
  18. Viggo, 328
  19. Lucas, 326
  20. Matheo, 290
  21. Lauge, 286
  22. Felix, 276
  23. Theodor, 258
  24. Liam, 256
  25. Conrad, 249
  26. Anker, 247
  27. Magnus, 246
  28. Holger, 244
  29. Erik, 242 (tie)
  30. Louie, 242 (tie)
  31. Luca, 238
  32. Anton, 235
  33. Victor, 234
  34. Ebbe, 227
  35. Vincent, 206
  36. Storm, 180
  37. Pelle, 179
  38. Nohr, 173 (tie)
  39. Walter, 173 (tie)
  40. Kalle, 171
  41. Albert, 166
  42. Atlas, 159
  43. Asger, 158 (tie)
  44. Frederik, 158 (tie)
  45. Vilhelm, 155
  46. Marius, 150
  47. Alexander, 146
  48. Johan, 144
  49. Bjørn, 139
  50. Adam, 138

Frida and Carl, the No. 1 names of 2023, are now in fifth and second place, respectively.

In the girls’ top 10, Nora replaced Sofia.

In the boys’ top 10, August and Theo replaced Malthe and Valdemar.

And the curious girl name Søs — short for Søster, the Danish word for “sister” — has been on the rise recently:

  • 2024: 138 baby girls named Søs in Denmark
  • 2023: 99 baby girls named Søs in Denmark
  • 2022: 79 baby girls named Søs in Denmark
  • 2021: 43 baby girls named Søs in Denmark
  • 2020: 20 baby girls named Søs in Denmark
  • 2019: 18 baby girls named Søs in Denmark

I can’t account for its trendiness, but I can tell you that the English equivalent, Sis, has never appeared in the U.S. data. (The name Sister has, though.)

Sources: Baby names – Statistics Denmark, Births – Statistics Denmark, Søs – Nordic Names

Image: Adapted from Flag of Denmark (public domain)

Popular baby names in Poland, 2024

Flag of Poland
Flag of Poland

Last year, the European country of Poland welcomed approximately 252,000 babies.

What were the most popular names among these babies? Maja and Nikodem.

Here are Poland’s top 50 girl names and top 50 boy names of 2024:

Girl names

  1. Maja, 4,640 baby girls
    • Maja ranked fifth for girls in 2023.
  2. Zofia, 4,470
  3. Zuzanna, 4,144
  4. Laura, 4,036
  5. Hanna, 3,916
  6. Julia, 3,482
  7. Oliwia, 3,420
  8. Pola, 3,166
  9. Alicja, 3,131
  10. Maria, 2,698
  11. Antonina, 2,666
  12. Emilia, 2563
  13. Amelia, 2,550
  14. Liliana, 2,417
  15. Michalina, 2,375
  16. Lena, 2,366
  17. Iga, 2,349
  18. Marcelina, 2,330
  19. Klara, 2,323
  20. Helena, 2,226 (tie)
  21. Wiktoria, 2,226 (tie)
  22. Lucja, 1,898
  23. Gabriela, 1,825
  24. Kornelia, 1,771
  25. Nela, 1,648
  26. Aleksandra, 1,522
  27. Rozalia, 1,487
  28. Blanka, 1,351
  29. Jagoda, 1,343
  30. Lilianna, 1,323
  31. Anna, 1,310
  32. Nadia, 1,238
  33. Róza, 1,186
  34. Mia, 1,181
  35. Natalia, 1,110
  36. Kaja, 1,094
  37. Aurelia, 1,024
  38. Aniela, 1,015
  39. Anastazja, 987
  40. Milena, 947
  41. Sara, 873
  42. Weronika, 821
  43. Nina, 795
  44. Matylda, 792
  45. Nikola, 771
  46. Barbara, 761
  47. Jasmina, 751
  48. Liwia, 734
  49. Adrianna, 609
  50. Eliza, 579

Boy names

  1. Nikodem, 6,388 baby boys
  2. Antoni, 5,404
  3. Jan, 5,277
  4. Aleksander, 5,170
  5. Leon, 4,669
  6. Franciszek, 4,574
  7. Ignacy, 4,229
  8. Jakub, 3,938
  9. Stanislaw, 3,715
  10. Mikolaj, 3,644
  11. Filip, 3,097
  12. Szymon, 2,722
  13. Adam, 2,628
  14. Maksymilian, 2,569
  15. Wojciech, 2,552
  16. Oliwier, 2,510
  17. Tymon, 2,478
  18. Marcel, 2,360
  19. Kacper, 2,199
  20. Wiktor, 1,993
  21. Michal, 1,891
  22. Julian, 1,853
  23. Gabriel, 1,720
  24. Oskar, 1,696
  25. Milosz, 1,678
  26. Igor, 1,638
  27. Tymoteusz, 1,555
  28. Piotr, 1,390
  29. Bruno, 1,089
  30. Hubert, 1,031 (tie)
  31. Dawid, 1,031 (tie)
  32. Tadeusz, 1,020
  33. Krzysztof, 969
  34. Natan, 928
  35. Teodor, 923
  36. Cezary, 911
  37. Henryk, 904
  38. Dominik, 884
  39. Milan, 835
  40. Karol, 779
  41. Bartosz, 774
  42. Mateusz, 732
  43. Ksawery, 755
  44. Artur, 701
  45. Alan, 684
  46. Fabian, 661
  47. Tomasz, 656
  48. Maciej, 650
  49. Leo, 608
  50. Daniel, 587

The news release made note of two names — Wieslawa (given to 2 baby girls) and Waclaw (given to 3 baby boys) — that were once quite popular, but today are “almost forgotten” (niemal zapomniane) in Poland.

P.S. The Polish letters L-with-a-stroke, Z-with-an-overdot, and S-with-an-accent don’t render properly on my site, so please imagine they exist in several of the above: the girl names Lucja, Róza, Jasmina, and Wieslawa, and the boy names Stanislaw, Mikolaj, Michal, Milosz, Waclaw.

Sources: Imiona nadawane dzieciom w Polsce – Otwarte Dane, Najpopularniejsze imiona nadawane dzieciom w 2024 roku – Ministerstwo Cyfryzacji – Portal Gov.pl, Annual births in Poland hit new postwar low as population decline accelerates – Notes from Poland

Image: Adapted from Flag of Poland (public domain)

Popular baby names in Slovenia, 2023

Flag of Slovenia
Flag of Slovenia

Last year, the Central European country of Slovenia (not to be confused with the Central European country of Slovakia) welcomed 16,989 babies: 8,312 girls and 8,677 boys.

What were the most popular names among these babies? Ema and Luka.

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

Girl names

  1. Ema, 180 baby girls
  2. Hana, 179
  3. Zala, 177
  4. Mia, 156
  5. Julija, 147
  6. Sofija, 144
  7. Ela, 134
  8. Ajda, 125 – means “buckwheat” in Slovene.
  9. Vita, 123
  10. Mila, 118
  11. Lina, 117
  12. Eva, 114
  13. Lana, 113
  14. Zoja, 109
  15. Lara, 103
  16. Neža, 99 (tie)
  17. Nika, 99 (tie)
  18. Maša, 96
  19. Ana, 95
  20. Sofia, 92
  21. Sara, 91
  22. Zarja, 86
  23. Gaja, 81
  24. Iva, 79
  25. Brina, 77
  26. Pika, 74 – means “dot” in Slovene. In Slovenia, Pippi Longstocking’s first name is Pika.
  27. Klara, 69
  28. Lucija, 67
  29. Lia, 61
  30. Lili, 58
  31. Alina, 57 (tie)
  32. Ula, 57 (tie)
  33. Tinkara, 55
  34. Olivija, 51 (3-way tie)
  35. Ota, 51 (3-way tie)
  36. Tara, 51 (3-way tie)
  37. Olivia, 48
  38. Aurora, 47 (4-way tie)
  39. Iza, 47 (4-way tie)
  40. Maja, 47 (4-way tie)
  41. Zara, 47 (4-way tie)
  42. Naja, 46
  43. Asja, 45
  44. Kaja, 44
  45. Nina, 43
  46. Elena, 42 (tie)
  47. Manca, 42 (tie)
  48. Ava, 41
  49. Živa, 40
  50. Aria, 38 (tie)
  51. Mija, 38 (tie)

Boy names

  1. Luka, 198 baby boys
  2. Nik, 195
  3. Filip, 185
  4. Jakob, 175
  5. Mark, 173
  6. Lovro, 145
  7. Liam, 134
  8. Tim, 132
  9. Lan, 129 (tie)
  10. Oskar, 129 (tie)
  11. Oliver, 124
  12. Maj, 114
  13. Maks, 101 (tie)
  14. Žan, 101 (tie)
  15. Teo, 100
  16. Jan, 94
  17. Vid, 92
  18. Gal, 89
  19. Bine, 84
  20. Jaka, 80
  21. Leo, 77
  22. David, 75 (tie)
  23. Nace, 75 (tie)
  24. Leon, 74
  25. Izak, 71
  26. Aleks, 69
  27. Brin, 67
  28. Anže, 59 (3-way tie)
  29. Val, 59 (3-way tie)
  30. Vito, 59 (3-way tie)
  31. Lukas, 58
  32. Adam, 54 (3-way tie)
  33. Tine, 54 (3-way tie)
  34. Žiga, 54 (3-way tie)
  35. Anej, 53
  36. Svit, 50 – means “dawn” in Slovene.
  37. Nejc, 49
  38. Bor, 48 (4-way tie) – means “pine tree” in Slovene. It’s also a short form of bor- names, like Boris.
  39. Erik, 48 (4-way tie)
  40. Mateo, 48 (4-way tie)
  41. Matic, 48 (4-way tie)
  42. Aleksej, 47 (tie)
  43. Jon, 47 (tie)
  44. Lenart, 46 (tie)
  45. Matija, 46 (tie)
  46. Lev, 44
  47. Benjamin, 42
  48. Erazem, 41
  49. Tian, 40
  50. Teodor, 39

The girls’ top 100 included Loti (60th), Nuša (86th), Nikolina (90th), and Inja (94th).

The boys’ top 100 included Ožbej (70th), Tilen (73rd), Nai (95th), and the vowelless Crt (97th) — though that “C” should have a caron (which signifies a ch sound).

I didn’t post about Slovenia’s top baby names of 2022, but here are Slovenia’s 2021 rankings.

Sources: Top 100 baby names in 2023 – Statistical Office of the Republic of Slovenia, Births, 2023 – Statistical Office of the Republic of Slovenia, Behind the Name

Image: Adapted from Flag of Slovenia (public domain)

Popular baby names in Poland, 2023

Flag of Poland
Flag of Poland

Last year, the European country of Poland welcomed approximately 272,000 babies.

What were the most popular names among all these babies? Zofia and Nikodem.

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

Girl names

  1. Zofia, 4,968 baby girls
  2. Zuzanna, 4,800
  3. Laura, 4,602
  4. Hanna, 4,565
  5. Maja, 4,461
  6. Julia, 4,254
  7. Oliwia, 3,846
  8. Pola, 3,692
  9. Alicja, 3,593
  10. Maria, 3,137
  11. Lena, 2,966
  12. Antonina, 2,912
  13. Emilia, 2,785
  14. Amelia, 2,759
  15. Klara, 2,660
  16. Michalina, 2,644
  17. Iga, 2,563
  18. Liliana, 2,561
  19. Wiktoria, 2,531
  20. Helena, 2,511
  21. Marcelina, 2,351
  22. Gabriela, 1,883
  23. Aleksandra, 1,878
  24. Nela, 1,768
  25. Kornelia, 1,761
  26. Lucja, 1,732
  27. Blanka, 1,636
  28. Anna, 1,581
  29. Nadia, 1,565
  30. Natalia, 1,441
  31. Lilianna, 1,422
  32. Jagoda, 1,410
  33. Mia, 1,232
  34. Milena, 1,148
  35. Róza, 1,132
  36. Kaja, 1,127
  37. Rozalia, 1,103
  38. Anastazja, 1,063
  39. Nina, 1,001
  40. Aniela, 984
  41. Weronika, 959
  42. Sara, 937
  43. Nikola, 917
  44. Barbara, 892
  45. Aurelia, 880
  46. Matylda, 845
  47. Liwia, 779
  48. Karolina, 752
  49. Martyna, 712
  50. Agata, 656

Boy names

  1. Nikodem, 6,532 baby boys
  2. Antoni, 5,663
  3. Jan, 5,638
  4. Aleksander, 5,625
  5. Franciszek, 4,965
  6. Leon, 4,916
  7. Jakub, 4,474
  8. Ignacy, 4,166
  9. Mikolaj, 4,081
  10. Stanislaw, 3,874
  11. Filip, 3,506
  12. Szymon, 3,269
  13. Wojciech, 3,078
  14. Adam, 2,889
  15. Tymon, 2,782
  16. Marcel, 2,759
  17. Kacper, 2,684
  18. Maksymilian, 2,655
  19. Oliwier, 2,578
  20. Wiktor, 2,347
  21. Michal, 2,183
  22. Igor, 1,899
  23. Julian, 1,855 (tie)
  24. Milosz, 1,855 (tie)
  25. Tymoteusz, 1,724 (tie)
  26. Gabriel, 1,724 (tie)
  27. Oskar, 1,683
  28. Piotr, 1,630
  29. Dawid, 1,276
  30. Bruno, 1,186
  31. Hubert, 1,159
  32. Krzysztof, 1,069
  33. Natan, 1,065
  34. Bartosz, 1,053
  35. Dominik, 1,022
  36. Mateusz, 900
  37. Cezary, 886
  38. Henryk, 880
  39. Alan, 869
  40. Karol, 866
  41. Tadeusz, 861
  42. Fabian, 837
  43. Tomasz, 830
  44. Maciej, 783
  45. Teodor, 761
  46. Ksawery, 752
  47. Milan, 733
  48. Artur, 722
  49. Leo, 669
  50. Pawel, 640

(Because L-with-a-stroke and Z-with-an-overdot don’t render properly on my site, you’ll have to imagine they exist in several of the above: the girl names Lucja and Róza, and the boy names Mikolaj, Stanislaw, Michal, Milosz, and Pawel.)

Poland’s data goes all the way down to names with just two instances of usage, so here’s a sampling of the rare baby names at the opposite end of the spectrum:

Rare girl namesRare boy names
Aryna, Burla, Christine, Dziyana, Esti, Flavia, Goja, Hafsa, Iwanna, Jutrzenka, Kleopatra, Latika, Miszel, Nasturcja, Oryslava, Polianna, Raya, Svitlana, Tinatin, Ursula, Vienna, Wiera, Yevahelina, ZoryanaArseniusz, Bozydar, Czarek, Dachi, Ege, Ferdinand, Gabrielius, Hleb, Ioannis, Joszko, Kerem, Lotar, Maciek, Nicolai, Oktawiusz, Przemek, Reece, Szarbel, Tymek, Umut, Vitali, Wolfgang, Yanis, Zawisza

On the girls’ side: Jutrzenka means “morning star” in Polish, and Nasturcja is the Polish word for nasturtium (a type of flower).

On the boys’ side: Hleb (Belarusian) comes from Gleb (Russian), which comes from Guðleifr (Old Norse: “god” + “heir”), and Zawisza can be traced back to a Slavic word meaning “envy.”

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

Sources: Imiona nadawane dzieciom w Polsce – Otwarte Dane, Births drop to new postwar low in Poland as population falls almost 1 million in a decade – Notes from Poland, Behind the Name, Jutrzenka – Wiktionary

Image: Adapted from Flag of Poland (public domain)