Sir John Marsham, 1st Baronet | |
|---|---|
 Copper engraving of Marsham, Johannes Marsham Eques Auratus | |
| Born | 23 August 1602 |
| Died | 25 May 1685 (aged 82) |
| Occupation(s) | clerk, Member of Parliament |
| Known for | chronologist |
Sir John Marsham, 1st Baronet (23 August 1602 – 25 May 1685) was an English antiquary known as a writer on chronology. He was also a chancery clerk and politician who sat in the House of Commons from 1660 to 1661.