Cognomen Renyu (Renyu 
, 仁余 , 仁雨 ) , across the world, is a rare family name. The last name Renyu is characteristic of China, where it is a very rare surname, Malaysia, and Indonesia. More frequently, Renyu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Renyu | Japan, China, Indonesia, United States, India |
| 任宇, 仁雨, 仁余 | China |
Реныу, Реню, 人与, 人予, 人于, 人余, 人娱, 人宇, 人屿, 人峪, 人愉, 人愚, 人昱, 人毓, 人渔, 人渝, 人漁, 人灪, 人玉, 人瑜, 人禹, 人羽, 人育, 人芋, 人虞, 人裕, 人誉, 人諭, 人语, 人钰, 人雨, 人魚, 人鱼, 亻禺, 仁与, 仁于, 仁俣, 仁喻, 仁域, 仁宇, 仁彧, 仁愈, 仁愉, 仁昱, 仁榆, 仁欲, 仁毓, 仁浴, 仁渔, 仁渝, 仁煜, 仁燏, 仁玉, 仁瑜, 仁禹, 仁羽, 仁育, 仁芋, 仁裕, 仁誉, 仁语, 仁豫, 仁郁, 仁钰, 仁馀, 仁鱼, 仞与, 仞屿, 任予, 任于, 任余, 任妤, 任愚, 任昱, 任渝, 任煜, 任玉, 任瑀, 任瑜, 任羽, 任育, 任裕, 任逾, 任钰, 任雨, 任馀, 刃余, 刃羽, 刄漁, 刄魚, 壬玉, 壬瑜, 壬誉, 壬钰, 壬雨, 忍余, 忍玉, 朲宇, 朲漁, 朲瑜, 秂渔, 秂漁, 荏渝, 袵繘, 認虞, 认瑜, 韧妤, 韧宇, 韧愈, 韧煜, 韧玉, 魜妤, 魜渔, 魜漁, 魜魚, and 魜鱼