The 2011–12 Stephen F. Austin Lumberjacks basketball team represented Stephen F. Austin University in the 2011–12 men's college basketball season.

This was head coach Danny Kaspar's twelfth season at SFA.

The Lumberjacks play their home games at the William R. Johnson Coliseum.

They are members of the West Division of the Southland Conference.

They lost in the semifinals of the Southland Basketball tournament to Lamar.