Sunny is a Japanese slice of life manga series written and illustrated by Taiyō Matsumoto. It was serialized in Shogakukan's seinen manga magazine Monthly Ikki from December 2010 to September 2014, when the magazine ceased publication. It was later transferred to Monthly Big Comic Spirits, being serialized from January to July 2015. Its chapters were collected in six wide-ban volumes. The manga was licensed for English release in North America by Viz Media.

Taiyō Matsumoto is a Japanese manga artist.