George W. Blackburn [Smiling George] (September 21, 1871 – after 1919) was a right-handed pitcher in Major League Baseball who played for the Baltimore Orioles in the 1897 season. A native of Ozark, Missouri, he spent 17 years in baseball as a player, coach, and manager Blackburn posted a 2–2 record with a 6.82 earned run average in five pitching appearances with the Orioles, allowing 30 runs (25 earned) on 34 hits and 12 walks while striking out one batter in 33 innings of work.