What does Gai mean?
Gai /gai/ [1 syll.] as a name for girls is of Old French origin, and the meaning of the name Gai is "blithe, cheerful". Gai is a variant transcription of Gay (Old French). Gaia is a common last name.
How popular is Gai?
Gai is an unusual given name for females but a very prominent surname for both adults and children (#51809 out of 150436, Top 34%). (2000 U.S. Census)
Shown below is an analysis of the popularity of Gai and corresponding names. Prominent related forms of Gai (unlisted) are Gay and Gaye. Adoption of these girl names reached its peak during the years 1950-1959 (usage of 0.5085%) and is now significantly less, with the forms Gay and Gaye becoming less trendy. (Top 1000 Baby Names Records, 2014)
Gai is pronounced similarly to Gaea, Gaia, Gaiea and Gaill. Other recommended similar baby names are Cai, Dai, GG, Gabi, Gail▼, Gal, Gavi, Gia▲, Kai and Mai▼. These names tend to be more commonly used than Gai.