The 2005 Conference USA baseball tournament was the 2005 postseason college baseball championship of the NCAA Division I Conference USA, held at Pete Taylor Park in Hattiesburg, Mississippi, from May 25 through 29, 2005.
Both TCU and Tulane were declared co-champions due to inclement weather but Tulane was given the automatic bid to the 2005 NCAA Division I baseball tournament.
The tournament consisted of eight teams, with two double-elimination brackets, and a single-game final that was cancelled due to inclement weather.
[1] † - Winner of the tournament and received an automatic bid to the NCAA tournament.
# - Received an at-large bid to the NCAA tournament.