| John G. Harp | |
| Office: | Member of the Montana State Senate |
| Term: | 1989 - 2000 |
| Office2: | Member of the Montana House of Representatives |
| Term2: | 1981–1988 |
| Birth Date: | 26 September 1952 |
| Birth Place: | Vancouver, Washington, U.S. |
| Party: | Republican |
| Occupation: | businessman, contractor |
| Spouse: | Kathy Harp |
| Residence: | Kalispell, Montana |
John George Harp (born September 26, 1952) is an American politician in the state of Montana. Harp served in the Montana House of Representatives from 1981 to 1988 and in the Montana State Senate from 1989 to 2000.[1] He was majority leader of the Senate from 1995 to 1999.[2]
Harp's wife is Kathy Harp. Harp and his family live in Kalispell, Montana.[1] Harp's son, Zachariah Harp, has been linked by the Southern Poverty Law Center, Media Matters for America and the Montana Human Rights Network to white supremacy movements and organizations.[3]