| Sir John Bloomfield | |
| Birth Date: | 1793 |
| Death Date: | 1 August 1880 (aged 87) |
| Placeofburial: | Brompton Cemetery |
| Death Place: | London |
| Allegiance: | United Kingdom |
| Branch: | British Army |
| Serviceyears: | 1810–1880 |
| Rank: | General |
| Unit: | Royal Artillery |
| Commands: | Master Gunner, St James's Park |
| Battles: | |
| Awards: | Military General Service Medal |
| Relations: | Benjamin Bloomfield, 1st Baron Bloomfield (cousin) |
General Sir John Bloomfield (c. 1793[1] – 1 August 1880) was Master Gunner, St James's Park, the most senior ceremonial position in the Royal Artillery after the Sovereign.
Bloomfield was commissioned into the Royal Artillery in 1810 and rose through the officer ranks to become a lieutenant-general in 1866.
He was made colonel commandant of the Royal Artillery in 1866 and promoted to full general in 1876 and then held the position of Master Gunner, St James's Park from 1877.[2] He died in 1880.