The Flamant-class patrol vessel are a series of three Type OPV54 patrol boats of the French Navy used for fishery monitoring, search and rescue, and patrolling France's exclusive economic zone out to 200 nautical miles (370 km; 230 mi).

The three boats were ordered in August 1993 and entered service in October and December 1997. They are based at Cherbourg.

In addition to their usual facilities the boats are also equipped with two 8 m³ (280 ft³) tanks for anti-pollutants, and a water cannon for fire fighting. They have a plant capable of producing 15 tonnes of fresh water per day by reverse osmosis. The boats have an area for vertical replenishment.

Each boat carries a 6.7 m (22 ft) Zodiac "Hurricane" rigid-hulled inflatable boat, powered by a 200 hp (149 kW) water jet engine that gives a top speed of 30 knots (56 km/h; 35 mph).

Replacement of this class had been envisaged after 2027 with a new class of significantly larger patrol vessels (the Patrouilleurs Hauturiers). However, in 2026 it was reported that the ships would be refit and extended in service until at least 2034/35.