Patrick Henry McCormick (October 25, 1855 – August 8, 1889) was an American pitcher in Major League Baseball in 1879, and from 1881 to 1883. McCormick died in his hometown of Syracuse, New York at the age of 33.
On July 26, 1879, McCormick, the Syracuse Stars' starting pitcher, hit a first-inning homer to beat Tommy Bond and the Boston Red Stockings, 1–0. This is the first and, most likely, will be the only occurrence in major league history that a pitcher will record a 1–0 victory with his own first inning round-tripper being the game's lone run.