Tomoyo After: It's a Wonderful Life (智代アフター ～It's a Wonderful Life～ Tomoyo Afutā ~It's a Wonderful Life~?) is a Japanese adult visual novel developed by Key released on November 25, 2005 for Windows PCs. Key later released versions of Tomoyo After without the erotic content, and the game was ported to the PlayStation 2, PlayStation Portable, Xbox 360 and PlayStation 3 under the title Tomoyo After: It's a Wonderful Life CS Edition; CS stands for "consumer software". The story follows the lives of Tomoya Okazaki, a young man who recently graduated from high school, and his close friend Tomoyo Sakagami as they start to see more of each other in a romantic relationship.

The gameplay in Tomoyo After follows a branching plot line which offers pre-determined scenarios with courses of interaction, and focuses on the appeal of the title character Tomoyo. The game is a spin-off of Key's earlier all ages game Clannad, where Tomoyo is one of the game's heroines. Tomoyo After is an expansion of Tomoyo's story after the events of Clannad and is written by Jun Maeda and Leo Kashida. The art was done by Fumio, as opposed to Itaru Hinoue who had done the art in Clannad. The game ranked as the best-selling PC game sold in Japan for the time of its release, and charted in the national top 50 twice more afterwards. A manga adaptation illustrated by Yukiko Sumiyoshi, under the title Tomoyo After: Dear Shining Memories, was serialized in Fujimi Shobo's Dragon Age Pure in 2007. Unlike the game which is told from Tomoya's point of view, the manga is told from Tomoyo's perspective. A single tankōbon volume was released in Japan in December 2007.