IC in a Sunflower is a science fiction josei manga written and illustrated by Mitsukazu Mihara. It is a collection of seven, unrelated short stories which appeared in the Japanese manga magazine Feel Young from 1994 to 1997. The stories were then collected into a bound volume in Japan by Shodensha on October 18, 1997. Tokyopop licensed IC in a Sunflower for an English-language release in North America, and published it on January 2, 2007. IC in a Sunflower was positively received by English-language critics and readers. Reviewers identified various themes and literary elements in the collection, and generally enjoyed the short stories and art.

Feel Young (フィールヤング) is a monthly josei manga magazine published by Shodensha in Japan. Manga artists whose stories have run in this magazine include Moyoco Anno, Mitsue Aoki, Mitsukazu Mihara, Kiriko Nananan, Mari Okazaki, Erica Sakurazawa, Ebine Yamaji, and others.