| Party: | African National Congress |
| Termstart1: | May 1994 |
| Termend1: | April 2004 |
| Citizenship: | South Africa |
| Birth Date: | 22 October 1933 |
| Termstart: | 7 August 2008 |
| Termend: | May 2009 |
| Office: | Member of the National Assembly |
| Constituency: | Eastern Cape |
| Constituency1: | Eastern Cape |
John Henry Nash (born 22 October 1933)[1] is a retired South African politician who represented the African National Congress (ANC) in the National Assembly. He served two consecutive terms from 1994 to 2004, representing the Eastern Cape constituency.[2] Though he left Parliament after the 2004 general election, he returned for a final stint on 7 August 2008, when he was sworn in to fill the casual vacancy arising from Ncumisa Kondlo's death.[3]