Kujibiki♥Unbalance (くじびき♥アンバランス, Kujibiki♥Anbaransu, "Unbalanced Lottery") is a 2006 anime series produced by Ajia-do Animation Works, initially based on the story within a story Kujibiki Unbalance that originated from Shimoku Kio's manga Genshiken. It is directed by Tsutomu Mizushima and written by Michiko Yokote. It aired in Kids Station in Japan from October 6 to December 22, 2006.

Notably different from the Genshiken version, it features redesigned characters and a new, yet familiar plot line. A manga adaptation was drawn by Keito Koume and was serialized in Kodansha's Afternoon magazine from April 2007 to December 2007.