Cognomen Kaiyi (凯毅 
, 凯义 , Kaiyi 
) , in the world, is a rare family name. The surname Kaiyi is habitual in Singapore, where it is a rare surname, Greece, where it is a very rare surname, and China. In absolute terms, this name is the most popular in China, India, and Singapore. More frequently, Kaiyi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 凯仪, 凯毅, 凯义 | China |
| Kaiyi | China, Malaysia, Singapore, United States, India |
Kaiyis, Каийи, Каиыи, 凯一, 凯乙, 凯亦, 凯亿, 凯以, 凯伊, 凯依, 凯倚, 凯壹, 凯夷, 凯奕, 凯宜, 凯屹, 凯弈, 凯忆, 凯怡, 凯怿, 凯意, 凯懿, 凯旖, 凯易, 凯栘, 凯椅, 凯沂, 凯溢, 凯漪, 凯熠, 凯燚, 凯疑, 凯益, 凯祎, 凯移, 凯绎, 凯羿, 凯翊, 凯翌, 凯翼, 凯艺, 凯议, 凯译, 凯谊, 凯贻, 凯轶, 凯逸, 凯遗, 凯铱, 凯镒, 凯颐, 凯饴, 凯驿, 凱宜, 剀义, 垲义, 垲伊, 垲怡, 垲熠, 垲翼, 开一, 开义, 开乙, 开亿, 开以, 开仪, 开佚, 开依, 开医, 开壹, 开夷, 开奕, 开姨, 开宜, 开屹, 开已, 开异, 开弋, 开彝, 开役, 开忆, 开怡, 开意, 开懿, 开揖, 开旖, 开易, 开椅, 开毅, 开沂, 开溢, 开熠, 开熤, 开燚, 开疑, 开益, 开祎, 开移, 开羿, 开翊, 开翳, 开翼, 开胰, 开艺, 开裔, 开议, 开译, 开诒, 开谊, 开轶, 开逸, 开遗, 开邑, 开镒, 开颐, 恺一, 恺义, 恺亿, 恺仪, 恺伊, 恺依, 恺夷, 恺奕, 恺宜, 恺屹, 恺异, 恺忆, 恺怡, 恺怿, 恺意, 恺懿, 恺易, 恺毅, 恺漪, 恺熠, 恺益, 恺祎, 恺翊, 恺翌, 恺翼, 恺艺, 恺裔, 恺谊, 恺轶, 恺逸, 恺颐, 愷儀, 慨义, 慨贻, 炏燚, 鎧宜, 铠义, 铠亦, 铠伊, 铠夷, 铠屹, 铠忆, 铠怡, 铠怿, 铠懿, 铠易, 铠溢, 铠熠, 铠祎, 铠翼, 铠逸, 铠邑, 铠铱, 铠驿, 锎翼, 锴一, 锴亦, 锴奕, 锴宜, 锴屹, 锴怡, 锴懿, 锴毅, 锴沂, 锴溢, 锴熠, 锴燚, 锴羿, 锴谊, 锴逸, and 锴驿