Dahmer was a grindcore band formed in Quebec City, Canada in 1995 by Sebastien (Seb) and Yvan Dionne. They composed about serial killers (hence their name referring to Jeffrey Dahmer), mass murderers and other various topics, some not even criminal-related and mostly humorous.

Though the group split up in early 2000, members are currently still involved in other grindcore bands such as FistFuck and other sporadic live performances as well as various side projects.