Charles has been a very popular Top 100 name in the U.S. since at least 1880, and spent 1880–1954 in the Top 10. Many of those years were also spent in the Top 5, with its highest rank of #4 coming in 1880 and 1883. It fell out of the Top 20 in 1970, and in 2016, it was down to #51.
Charlotte enjoyed modest popularity in the first half of the 20th century, but fell out of the Top 100 in 1953, and sank lower and lower. Some years it was more popular than others, but it didn’t begin dramatically climbing in popularity till 2000. It vaulted up the charts at amazing speeds, and in 2016, it achieved its highest rank of #7.
Caroline has also been enjoying a noticeable uptick in popularity, and was #56 in 2016. It doesn’t take a rocket scientist to figure out this is one of those “replacement” names people use when they’re off-put by another name’s popularity. Think of Madison and Madeline; Jennifer and Jessica; or Emily and Emma, Amelia, and Amalia. The replacement name often overtakes the original popular name.
Forms of Charles:
1. Charles is English and French. English nicknames are Charlie, Charley, Chuck, Chas, Chaz, and Chip. The French nickname is Charlot, which is how the French people refer to Charlie Chaplin.
2. Karl is German, Russian, Scandinavian, Finnish, and English, and the original form of the name. It either means “man” or “army, warrior.” The Swedish and Finnish nickname is Kalle, and the Russian nickname is Karlik.
3. Carl is English, as well as an alternate German and Scandinavian form.
4. Carlos is Spanish, Portuguese, and Catalan.
5. Carles is Catalan.
6. Carol is Romanian, and the name of the scummy King Carol II.
7. Carlo is Italian.
8. Karolis is Lithuanian.
9. Kaarel is Estonian
10. Kaarle is Finnish.
11. Kaarlo is also Finnish.
12. Karol is Polish, Slovak, and Slovenian. Most people know this was the birth name of the popular Pope John Paul II.
13. Karlo is Georgian and Croatian.
14. Karel is Slovenian, Czech, and Dutch.
15. Séarlas is Irish.
16. Carlu is Corsican.
17. Charel is Luxembourgish.
18. Charl is South African.
19. Karle is Gascon.
20. Kārlis is Latvian.
21. Kale is Hawaiian.
22. Sjarel is Limburgish.
23. Siarl is Welsh.
24. Karles is Icelandic, Swedish, and Norwegian.
25. Karolos is Greek.
26. Scharri is Alsatian.
27. Xarles is Basque.
28. Kârale is Greenlandic.
29. Kárral is Sami.
30. Käru is Swiss–German.
31. Korla is Sorbian.
32. Károly (KAH-roy) is Hungarian.
Forms of Charlotte:
1. Charlotte is French, English, German, Dutch, and Scandinavian.
2. Charlotta is Swedish.
3. Karla is Slavic, German, Hungarian, Lithuanian, Yiddish, and Scandinavian.
4. Carla is Spanish, Italian, Catalan, Portuguese, English, German, and Dutch.
5. Karola is Polish, German, Hungarian, Latvian, Yiddish, and Croatian.
6. Caroline is French, English, German, Dutch, and Scandinavian.
7. Carolina is Spanish, Italian, Portuguese, English, and Swedish.
8. Karolina is Polish, Hungarian, Slovenian, Scandinavian, German, Macedonian, Russian, Lithuanian, Serbian, Greek, Bulgarian, and Croatian. The variation Karolína is Czech, with the nickname Kája. The Icelandic variation is Karólína, and Karolīna is Latvian.
9. Carola is Italian, German, Dutch, and Swedish.
10. Carlotta is Italian.
11. Carlota is Spanish and Portuguese.
12. Charlize is Afrikaans.
13. Karoliina is Finnish. Nicknames include Iina and Liina.
14. Karoline is German, Danish, and Norwegian. Nicknames are Ina, Lina, and Line.
15. Séarlait is Irish.
16. Karlota is Greek.
17. Karlotte is Estonian.
18. Kalaki is Hawaiian.
19. Sālote is Tongan.
20. Šarlota is Czech.
21. Šarlote is Latvian.
22. Seàrlaid is Scottish.
23. Sjarlot is Limburgish..
24. Szarlota is Polish.
25. Kalolaina is Hawaiian and Fijian.
26. Kararaina is Maori.
27. Karolyna is Polish.
28. Kealalaina is Hawaiian.
29. Charlene originated as an English nickname, but now is more commonly used as a full name in its own right.
30. Charline is a French diminutive form of Charlotte, but now often used as a full name in French and English.
31. Carole is French and English.
32. Charla is English.