| John Marmion | |
| Office: | MP for Cricklade |
| Term Start: | 20 Jan 1558 |
| Term End: | 17 November 1558 |
| Birth Date: | bef. 1519 |
| Death Date: | c. 1581 |
| Parents: | Anthony Marmion |
| Spouse: | Cecily Slythurst |
John Marmion (bef. 1519 – c. 1581) was a Member of Parliament for Cricklade, Wiltshire.
He was the eldest son of Anthony Marmion of Adwell, Eastington and Upton St. Leonards, Gloucestershire and grandson of William Marmion, one of the MPs for Gloucester in 1491.
John was summoned to Parliament on 20 Jan 1558.
He became indebted to Sir Robert Doyley and was outlawed by 1581 and not heard of again.