| Haga Yui | |
| Native Name: | 葉賀 |
| Native Name Lang: | jp |
| Nationality: | Japanese |
| Known For: | Anime, Manga, Light novels |
| Notable Works: | Astarotte no Omocha!, Baka to Test to Shoukanjuu |
is a Japanese light novel, manga, and anime artist. His most famous work is Baka and Test, which inspired a two series anime and a video game for the PlayStation Portable. He is also responsible for Astarotte no Omocha! and Sakura*Nadeshiko.[1] Additionally, he was responsible for the ending illustrations in Nisemonogatari.[2]