John Heydon (soldier)
Sir John Heydon | |
|---|---|
| Died | 16 October 1653 |
| Allegiance | Royalist |
| Rank | Lieutenant-General of the Ordnance |
| Battles / wars | First English Civil War |
| Other work | Mathematician |
Sir John Heydon (died 1653) was an English Royalist military commander and mathematician, Lieutenant-General of the Ordnance at the outbreak of the First English Civil War.