HMS Flirt is a name that has been borne by several ships of the Royal Navy:
- HMS Flirt (1797): A 14-gun brig-sloop launched in 1797. She saw service during the Napoleonic Wars, participating in various engagements and capturing enemy vessels. She was eventually sold in 1827.
- HMS Flirt (1840): A 12-gun brig launched in 1840. She was primarily engaged in anti-slavery operations off the West African coast. She was wrecked in 1853.
- HMS Flirt (1897): A B-class torpedo boat destroyer launched in 1897. She served in home waters and was sunk in a collision with the troopship Kildonan Castle off the coast of Portland in 1901.
- HMS Flirt (1901): A torpedo boat launched in 1901. She served until being sold in 1920.
- HMS Flirt (1903): A C-class torpedo boat destroyer launched in 1903. She also served in home waters before being sold in 1920.