HMS Chatham (1741) was a 6-gun yacht launched in 1741. She was rebuilt in 1793 and 1842, and broken up by 1867.
HMS Chatham (1758) was a 50-gun fourth rate launched in 1758. She was used for harbour service from 1793 and was a powder hulk from 1805. She was renamed HMS Tilbury in 1810 and was broken up in 1814.
HMS Chatham (1788) was a 4-gun survey brig, launched in 1788. She was part of George Vancouver's expedition of the Pacific Northwest coast and circumnavigated the globe. She was sold in 1830.
HMS Chatham (1811) was a transport launched in 1811 and sunk as a breakwater in 1825.
HMS Chatham (1812) was a 74-gun third rate, originally the French Royal Hollandais. She was captured on the stocks in 1809 at Flushing, launched in 1812, and sold in 1817.