HMS Monmouth (1667) was a 66-gun third rate launched in 1667. She was rebuilt in 1700 and 1742, and was broken up in 1767.
HMS Monmouth (1772) was a 64-gun third rate launched in 1772. She became a prison ship and named HMS Captivity in 1796, and was broken up in 1818.
HMS Monmouth (1796) was a 64-gun third rate, originally the Indiaman Belmont. She was purchased on the stocks and launched in 1796. She became a sheer hulk in 1815 and was broken up in 1834.
HMS Monmouth was a 46-gun fifth rate launched in 1828 as HMS Hotspur. She became a chapel hulk in 1859, was renamed HMS Monmouth in 1868, and sold in 1902.