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.

He became a civil and mining engineer and was identified with banking, coal, iron, and lumber industries.

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 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.