French frigate Infatigable (1799)

Infatigable was a 40-gun Valeureuse class frigate of the French Navy, built at Le Havre in 1797-1800. She took part in Allemand's expedition of 1805.

A French squadron consisting of FRENCH BRIG-SLOOP Actæon, FRENCH SHIP Armede, FRENCH FRIGATE Gloire, Infatigable, FRENCH SHIP Jemmapes, FRENCH SHIP Lion, FRENCH CORVETTE Lynx and FRENCH SHIP Magnanime burnt the sloop Eclipse, Lady Nelson, Matthew, Thetis, and Thomas in an attack at Saint Kitts. The same squadron burnt the Lady Jane Halliday, the Nelly, and the Themis at Nevis.

A four-ship squadron of the Royal Navy under Samuel Hood captured her in the Action of 25 September 1806, together with Gloire, Minerve and Armide after they had left Rochefort.

She was taken into Royal Navy service as HMS Immortalite but never used. She was broken up in January 1811.