Aho-Girl: A Clueless Girl (Japanese: アホガール, Hepburn: Aho Gāru; lit. "Idiot Girl") is a Japanese four-panel manga series written and illustrated by Hiroyuki. It was serialized in Kodansha's shōnen manga magazine Weekly Shōnen Magazine from November 2012 to February 2015, and later moved to the publisher's Bessatsu Shonen Magazine, where it ran from June 2015 to December 2017; its chapters were collected in 12 tankōbon volumes. A 12-episode anime television series adaptation by Diomedéa aired between July and September 2017.

The story follows the everyday life of high school girl Yoshiko Hanabatake. True to the title, she is known to be exceptionally stupid academically as well as socially. She constantly hangs out with and annoys her studious and serious neighbor/childhood friend Akuru Akutsu, whom Yoshiko's mother wants her to marry. Yoshiko becomes friends with the level-headed Sayaka Sumino, who, along with Akuru, try to keep Yoshiko in check. The Public Morals Chairwoman dislikes the free-spirited Yoshiko but when Akuru makes some casual remarks that compliment her, the chairwoman falls in love with Akuru and begins stalking him while repressing her perverted thoughts. Yoshiko also befriends Ryuichi Kurosaki, a delinquent who thinks of Yoshiko as a gang leader, a group of playground kids, a group of gyaru, and some other students and staff at school.