| John Leisenring | |
| State: | Pennsylvania |
| District: | 12th |
| Term Start: | March 4, 1895 |
| Term End: | March 3, 1897 |
| Preceded: | William H. Hines |
| Succeeded: | Morgan B. Williams |
| Office2: | Member of the Pennsylvania House of Representatives |
| Term2: | 1894-1895 |
| Birth Date: | 3 June 1853 |
| Birth Place: | Ashton, Pennsylvania, U.S. |
| Death Place: | Philadelphia, Pennsylvania, U.S. |
| Party: | Republican |
John Leisenring (June 3, 1853 – January 19, 1901) was an American politician from Pennsylvania who served as a Republican member of the U.S. House of Representatives for Pennsylvania's 12th congressional district from 1895 to 1897.
John Leisenring was born in Ashton, Pennsylvania, now known as Lansford, Carbon County, Pennsylvania. He attended two public schools, Schwartz’s Academy in Bethlehem, Pennsylvania, and an academy in Merchantville and Princeton, New Jersey. He became a civil and mining engineer and was identified with banking, coal, iron, and lumber industries. He moved from Mauch Chunk, Pennsylvania to Upper Lehigh, Pennsylvania, in 1885.
A Republican, Leisenring was a member of the Pennsylvania State House of Representatives in 1894 and 1895, and was then elected to the Fifty-fourth Congress. He declined to be a candidate for reelection in 1896. He was a delegate to the Republican State convention in 1896. He resumed his former business pursuits and served as president of the Upper Lehigh Coal Company.
Leisenring died in Philadelphia in 1901, and was interred in the City Cemetery in present-day Jim Thorpe, Pennsylvania. He was 47 at the time of his death.