Benedict Joseph Zientara (February 14, 1918 – April 16, 1985) was a professional baseball infielder.

Listed at 5 ft 9 in (1.75 m), 165 lb., he batted and threw right-handed.

A native of Chicago, Zientara was one of many major leaguers who saw his baseball career interrupted by a military stint during World War II.

In parts of four seasons, he was a .254 hitter (230-for-906) with two home runs and 49 RBI in 278 games, including 106 runs, 29 doubles, five triples, and five stolen bases.

Zientara died in 1985 in Lake Elsinore, California, at the age of 67.