Ultra Jump (ウルトラ ジャンプ Urutora Janpu?) is a Japanese monthly seinen manga magazine published by Shueisha under the Jump line of magazines. Originally, the magazine was a special issue of Weekly Young Jump which first issued in 1995. On October 19 of 1999, the special issue became the new monthly publication Ultra Jump. The manga titles serialized in the magazine are also published in tankōbon volumes under the Young Jump Comics Ultra label.
Ultra Jump started as a special issue of the Seinen anthology Weekly Young Jump]' called "Young Jump: Ultra Special Issue: Ultra Jump", which first issued in 1995. The magazine was split to a monthly publication in 1999, simply called "Ultra Jump". On March 19, 2008, Ultra Jump released an online spin-off of the Ultra Jump magazine: "Young Jump: Ultra Special Issue: Ultra Jump" (ヤングジャンプ超増刊ウルトラジャンプ Yangu Janpu Chō Zōkan Yangu Janpu ?). Ultra Jump Egg is an online manga website that mainly serializes manga not in the original Ultra Jump magazine.
In 1996, Ultra Jump began to publish Takehiko Itō's Outlaw Star manga in serial format. The manga was an ongoing series for three years until May 1999. Ultra Jump published the last four issues of Outlaw Star, May 1999. These four chapters were never published in a collected volume by Shueisha Inc..