Brian Michael Bass (born January 6, 1982, in Pinehurst, North Carolina) is a Major League Baseball relief pitcher for the Baltimore Orioles.

Bass, a graduate of Robert E. Lee High School in Montgomery, Alabama, was selected by the Kansas City Royals in the 6th round(164th overall) of the 2000 Major League Baseball Draft.

After signing with the Royals, Bass played for the Rookie League Gulf Coast Royals in 2000. He went 3-5 with a 3.89 ERA. Bass also made one start at the Single-A level for the Charleston Alley Cats.