Last name Jianyou (建有 
, Jianyou 
, 建尤 ) , worldwide, is quite a rare cognomen. The surname Jianyou is characteristic of China, where it is a rare surname, Cambodia, where it is a very rare surname, and Spain. More frequently, Jianyou is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 健友, 建尤, 建有 | China |
| Jianyou | China, Spain, Colombia, United States, France |
Йианёу, 件友, 俭友, 俭尤, 俭有, 健优, 健佑, 健右, 健尤, 健有, 健油, 健游, 健猷, 健酉, 兼优, 兼友, 兼有, 剑优, 剑佑, 剑侑, 剑友, 剑尤, 剑悠, 剑有, 剑游, 剑猷, 剪友, 剱苃, 劍游, 坚优, 坚佑, 坚友, 坚有, 坚油, 坚游, 坚猷, 坚铀, 奸友, 建优, 建佑, 建侑, 建又, 建友, 建右, 建囿, 建幼, 建悠, 建柚, 建油, 建游, 建犹, 建猷, 建由, 建莜, 建邮, 建酉, 建铀, 柬友, 检友, 检有, 渐友, 渐有, 渐游, 煎油, 牮佑, 硷有, 简优, 简友, 简幽, 箭友, 肩游, 舰友, 荐友, 荐有, 見柚, 见佑, 见友, 见尤, 见忧, 见有, 谏有, 贱友, 贱有, 鉴优, 鉴友, 鉴尤, 鉴有, 鉴游, 键佑, 键友, 键幼, 键铀, 间友, 间有, and 间游