"You Ain't Much Fun" is a song co-written and recorded by American country music artist Toby Keith. It was released in March 1995 as the third single from his 1994 album Boomtown. The song peaked at number 2 on the US Billboard Hot Country Singles & Tracks (now Hot Country Songs) chart and at number 3 on the Canadian RPM country tracks. Keith wrote this song with Carl Goff Jr.