Cognomen Jikai (Jikai 
, 继开 , 吉凯 ) , in the entire world, is quite a rare last name. The family name Jikai is characteristic of Hong Kong, where it is a rare surname, China, where it is a very rare surname, and Malaysia. More prevalently, Jikai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jikai | Japan, China, Hong Kong, United States, India |
| 继开, 纪凯, 吉凯 | China |
Жикаи, Жикай, Йикаи, ジカイ, 亽凯, 佶恺, 偈凯, 冀凯, 冀开, 冀恺, 冀锴, 几凯, 即凯, 及开, 吉开, 吉恺, 吉铠, 吉锴, 基凯, 基开, 基锴, 姬凯, 季凯, 季剀, 季开, 季恺, 季铠, 季锴, 寂凯, 寄凯, 寄开, 己凯, 彐凯, 戟铠, 技凯, 技开, 既凯, 机开, 极凯, 楫恺, 济凯, 济开, 济恺, 济慨, 济锴, 矶凯, 积凯, 积开, 积锎, 积锴, 稷开, 積凱, 箕凯, 継凯, 级凯, 级开, 纪开, 纪恺, 纪慨, 纪铠, 继凯, 继凱, 继恺, 继慨, 继铠, 继锴, 绩凯, 绩锴, 藉锴, 觊恺, 计凯, 计开, 计恺, 记凯, 记开, 诘凯, 跻凯, 际凯, 际开, 际恺, 集凯, 集开, 集铠, 集锴, 霁开, 霁恺, 骥凯, 骥开, and 骥恺
Sk, Sekh, Chen, Deng, Dong, Duan, Gong, Liao, Long, Tang, Feng, Wang, Yang, Yuan, Zeng, Zhou, Chang, Cheng, Liang, Jiang, Huang, Zhang, Xie, Xia, Qin, Zhu, Du, Li, Lu, Shi, Sun, Cao, Pan, Ren, Gao, Guo, Zheng, Lei, Luo, Jin, Tan, Han, Hou, Fan, Wen, Yan, Yin, Zou, Liu, and Saiekh