When a Snail Falls in Love (Chinese: 如果蜗牛有爱情; pinyin: rú guǒ wō niú yǒu ài qíng) is a 2016 Chinese television series directed by Zhang Kai-zhou and produced by Daylight Entertainment. It stars Wang Kai, Wang Ziwen, Xu Yue, and Yu Heng. It is based on Ding Mo's novel of the same title, who also wrote Love Me If You Dare starring Wallace Huo. The series aired on Dragon TV from 24 October to 12 December 2016.

The series saw 200 million online hits the first week, and on 15 November the production team announced that the show had reached 1 billion views online. The show is also popular with international viewers, with a 9.4 out 10 score on Viki, and has been praised for its suspenseful storyline and tightly woven plot.