| Henry Clay McCormick | |
| State: | Pennsylvania |
| District: | 16th congressional |
| Term Start: | March 4, 1887 |
| Term End: | March 3, 1891 |
| Predecessor: | William W. Brown |
| Successor: | Albert C. Hopkins |
| Office2: | 41st Attorney General of Pennsylvania |
| Term Start2: | January 15, 1895 |
| Term End2: | January 18, 1899 |
| Governor2: | Daniel H. Hastings |
| Predecessor2: | W. U. Hensel |
| Successor2: | John P. Elkin |
| Birth Date: | 30 June 1844 |
| Birth Place: | Washington Township. |
| Death Place: | Williamsport |
| Nationality: | American |
| Party: | Republican |
| Spouse: | Ida Hays |
| Children: | 2 |
Henry Clay McCormick (June 30, 1844 – May 26, 1902) was a Republican member of the U.S. House of Representatives from Pennsylvania.
Henry C. McCormick was born in Washington Township, Lycoming County, Pennsylvania on June 30, 1844. He attended the common schools and Dickinson Seminary in Williamsport, Pennsylvania. He studied law, was admitted to the bar in 1866 and practiced in Williamsport.
McCormick was elected as a Republican to the Fiftieth and Fifty-first Congresses. He served as chairman of the United States House Committee on Railways and Canals during the Fifty-first Congress. He was a delegate to the 1892 Republican National Convention. He was elected president of the Williamsport & North Branch Railroad in 1892. He served as Attorney General of Pennsylvania from 1895 to 1899. He resumed the practice of law.
McCormick died in Williamsport in 1902. His body was interred at the Wildwood Cemetery.