This post contains affiliate links.
At a Glance
- Meaning
- Rejoice
- Origin
- Welsh
- Gender
- Boy
- Pronunciation
- KY
Cai is a Welsh boy's name meaning "rejoice," pronounced KY (/ˈkaɪ/). It's short and clean, with a modern, worldly feel that fits easily with just about any middle or last name.
Meaning & Origin of Cai
Meaning: Rejoice.
Origin: Welsh.
How to Pronounce Cai
KYIPA /ˈkaɪ/
Popularity of Cai
Cai ranked #1902 in the U.S. in 2024, with 83 babies given the name. It peaked at #1612 in 2022, when 108 babies were named Cai, so it's a name you'll rarely hear on the playground.
Names Like Cai
These names share Cai’s style, era or origin.
FAQ
What does the name Cai mean?
Rejoice.
How do you pronounce Cai?
Cai is pronounced KY (IPA: /ˈkaɪ/).
Is Cai a popular name right now?
Cai peaked at #1612 in 2022 and is ranked #1902 as of 2024. (U.S. Social Security Administration data, 1989–2024.)
Make Cai Name Art
Free printable nursery art for Cai, pre-loaded below — pick a layout, palette, and font, then download a print-ready PNG.
📊 How popular is Cai? See the full popularity history, trend data, and ranking since 1880 with our free Baby Name Popularity Checker.
🎲 Think you know your baby names? Take the quiz!
📱 The Baby Names app is here
Swipe names, match with your partner the moment you both say yes, and claim a free Name Art print of your winner. Free to download. See all our apps →
