HMS Ajax (1848)
- occupation:
- Royal Navy 3rd rate, Blockship
- Nationality:
- British
1809 - launched as a 3rd rate by Perry & Co, Blackwall. 1848 - converted to screw by Thomas & John White, Cowes. 1853-1856 - took part in the Crimean War. 1854 - involved in the Bombardment of Bomarsund, Finland. 1864 - broken up.