Lucky Star

, is a Japanese four-panel comic strip manga by Kagami Yoshimizu. The story portrays the lives of several girls attending a Japanese high school named Ryōō with a very loose sense of humor. The setting is mainly based on the city of Kasukabe in Saitama Prefecture. The main character is, an athletic and intelligent, but also slightly mischievous and laid-back girl who, despite these attributes, is not in a sports club and has to resort to all-nighter cramming for tests. She would rather read manga and play video games than do her homework.

The serialization began with the four main characters in their first year of high school:, , , and. As the story progresses, they move on to their second and third years. However, the anime starts the story with them beginning their second year, and the other high school girls that are seen in the opening are only introduced halfway through the series. The storyline usually includes numerous references to popular past and present manga and anime series.

The four-panel comic strip manga version of Lucky Star started serialization in Kadokawa Shoten's magazine Comptiq on January 2004. The first bound volume of the manga was published on January 8, 2005, and as of September 10, 2008, six volumes have been released. Besides Comptiq, the manga was also featured in other Kadokawa magazines including Shōnen Ace, Newtype, CompAce, Dragon Magazine, Mobile Newtype and Kadokawa Hotline for various lengths of time. The manga has been licensed by Bandai Entertainment for release in English in North America, the first volume was released in June 2009. Lucky Star also has a manga called Lucky Star Pocket Travelers which has the four main characters waking up one morning to discover they have shrunken to doll size.

The Lucky Star anime, produced by Kyoto Animation, aired between April 8, 2007, and September 16, 2007, containing twenty-four episodes. Kadokawa Pictures USA and Bandai Entertainment announced that they licensed the Lucky Star anime with a teaser trailer as a special feature on the volume 4 DVD of The Melancholy of Haruhi Suzumiya. The first four English DVD volumes were released by Bandai Entertainment in 2008 on May 6, July 1, September 2, and November 18.