HardBall III is a multiplatform baseball video game developed by MindSpan and published by Accolade between 1992 and 1994 for the Sega Genesis, Super Nintendo Entertainment System and DOS platforms.

The game is licensed by the Major League Baseball Players Association and is the sequel to HardBall II.

Season stats are logged through a lengthy password in these versions due to the lack of a hard disk drive that was already common in the more expensive personal computers at that time.

Computer Gaming World in 1992 said that "HardBall III looks like another winner", complementing its emphasis on action while also providing simulation functions.

The magazine praised its "glorious" support for VGA graphics and sound cards, and concluded that the game "packs more features in a single box than any of its competitors".