Arthur Francis Merewether (July 7, 1902 – February 2, 1997), nicknamed "Merry", was an American professional baseball player.

He played college baseball at Brown University, where he was a second baseman and graduated in 1922.

He was signed out of college by the Pittsburgh Pirates and after spending time in Pittsburgh's minor league system, he appeared in one game as a pinch hitter for the big league club in 1922.

[1] Following his stint with the Pirates, Merewether enrolled in a graduate program at Massachusetts Institute of Technology (MIT).

At MIT, he once again played collegiate baseball, was the captain of the club, and received his master's degree in chemistry in 1925.