| John McCreary | |
| State1: | South Carolina |
| District1: | 8th |
| Term Start1: | March 4, 1819 |
| Term End1: | March 3, 1821 |
| Predecessor1: | Wilson Nesbitt |
| Successor1: | Joseph Gist |
| Office2: | Member of the South Carolina House of Representatives |
| Term2: | 1802 |
| Term3: | 1794–1799 |
| Party: | Democratic-Republican |
| Birth Place: | Chester County, Province of South Carolina, British America |
| Death Place: | Chester County, South Carolina, U.S. |
| Resting Place: | Chester County, South Carolina |
| Occupation: | planter, surveyor |
John Mccreary (November 4, 1833) was a U.S. Representative from South Carolina.
John McCreary was born in approximately 1761 near Fishing Creek Lake, about eighteen miles from Chester in the Province of South Carolina. He received his schooling from private tutors.
He became a surveyor. He also engaged in agricultural pursuits, and he ran a Southern plantation in South Carolina. Later, he served in the Revolutionary War.
He was a member of the South Carolina House of Representatives from 1794 to 1799 and 1802. He was elected as a Democratic-Republican to the Sixteenth Congress, where he served from March 4, 1819, to March 3, 1821.
He resumed agricultural pursuits and surveying.
He died on his plantation in South Carolina on November 4, 1833. He was buried in the Richardson Church Cemetery, Chester County, South Carolina.