Trigun is a Japanese manga series written and illustrated by Yasuhiro Nightow. It was first serialized in Tokuma Shoten's shōnen manga magazine Monthly Shōnen Captain from March 1995 to December 1996, until the magazine ceased its publication; its chapters were collected in three tankōbon volumes. The series continued its publication in Shōnen Gahosha's seinen manga magazine Young King OURs, under the title Trigun Maximum, from October 1997 to March 2007. Shōnen Gahosha republished the Trigun chapters in two volumes, and collected the Trigun Maximum chapters in 14 volumes.

Manga are comics or graphic novels originating from Japan. Most manga conform to a style developed in Japan in the late 19th century, and the form has a long history in earlier Japanese art. The term manga is used in Japan to refer to both comics and cartooning. Outside of Japan, the word is typically used to refer to comics originally published in Japan and published in translation, i.e. a Japanese comic book with English text.