Robert Averill Bonner (born August 12, 1956) is an American former professional baseball player and currently a Baptist missionary.

He played parts of four seasons in Major League Baseball, from 1980 and 1983, all for the Baltimore Orioles, primarily as a shortstop.

Weaver remarked in an interview, "Bonner can play and our minor league people know what they're doing.

[2] After retiring from baseball after the 1984 season, he became a missionary in Zambia, serving there for twenty-six years.

Bonner appeared on Cal Ripken Jr.'s 1982 Topps rookie card along with pitcher Jeff Schneider.