George Francis McNamara (January 11, 1901 – June 12, 1990) was a backup right fielder in Major League Baseball who played briefly for the Washington Senators during the 1922 season. Listed at 6' 0", 175 lb., McNamara batted left-handed and threw right-handed. He was born in Chicago.
In a three-game career, McNamara was a .273 batting average hitter (3-for-11) with one RBI and a .333 on-base percentage. As an outfielder, he posted a 1.000 fielding percentage in three errorless chances.
McNamara died in Hinsdale, Illinois, at the age of 89.