Xeno-T (Korean: 제노티) is a South Korean boy group formerly known as Topp Dogg. The group consists of five members: Hojoon, Sangdo, B-Joo, Xero and Sangwon. Originally a thirteen-member group created by Cho PD in 2013 under Stardom Entertainment, the group moved to Hunus Entertainment, following Stardom Entertainment's merger with the company. After multiple line-up changes, the remaining five members subsequently changed their name to XENO-T in 2018.
As Topp Dogg, the group released one studio album, four EPs, three repackages, eight singles and had three soundtrack appearances.