Patrick Clement Simmons [birth name: Patrick Clement Simoni] (November 29, 1908 – July 3, 1968) was a relief pitcher in Major League Baseball who played briefly for the Boston Red Sox during the 1928 and 1929 seasons. Listed at 5 ft 11 in (1.80 m), 172 lb., Simmons batted and threw right-handed. He was born in Watervliet, New York.
In a two-season career, Simmons posted a 0–2 record with 18 strikeouts and a 3.67 ERA in 33 appearances, including three starts, 75 hits allowed, two saves, and 76.0 innings of work.
Simmons died at the age of 59 in Albany, New York.