Zillion (Japanese: 赤い光弾ジリオン, Hepburn: Akai Kōdan Jirion, literally Red Photon Bullet Zillion, fully titled Red Photon Zillion) is a Japanese anime television series that ran from April 12-December 13, 1987 on Nippon Television in Japan and was produced by Tatsunoko Productions. After the production of the anime, Tatsunoko Production and Mitsuhisa Ishikawa, the producer of Zillion, established IG Tatsunoko (which later became Production I.G) to obstruct the dispersing of the excellent staffs of Tatsunoko branch which had done actual production. Therefore, Zillion is considered to be Production I.G's first work.

Five of the 31 episodes were dubbed into English and released on VHS in the United States by Streamline Pictures. This anime was featured in the music video for Michael and Janet Jackson's collaboration "Scream". Samples from the English dub of the anime were also featured in Del the Funky Homosapien's single "Cyberpunks".

In October 2018, Funimation has released the complete series and the OVA on a Blu-ray/DVD set with Japanese audio and English subtitles.