Sherwin Merle "Bud" Swartz (June 13, 1929 – June 24, 1991) was an American Major League Baseball pitcher who played for the St. Louis Browns in 1947. He was born in Tulsa, Oklahoma, and was Jewish. He attended University High School in Los Angeles, California.
A single in his only at-bat at 18 years of age left Swartz with a rare major league career batting average of 1.000. He pitched in five games, and gave up four earned runs in 5+1⁄3 innings.