Le Crotoy (French pronunciation: [lə kʁɔtwa]; Picard: Ch'Crotoé) is a commune in the Somme department in Hauts-de-France in northern France.

Le Crotoy was also famous at the beginning of 20th century in the history of aviation, as the site of the Caudron brothers flying school.

Le Crotoy is situated on the D143 and D71 crossroads, on the eastern side of the Baie de Somme, some 10 miles (16 km) northwest of Abbeville.

[citation needed] It is also close to Marquentera (Park of Marquenterre), an area with a number of lakes, marshes and habitat for flora and fauna.

Running around the entire length of the bay, this railway connects Le Crotoy with Noyelles-sur-Mer, Saint-Valery-sur-Somme, and Cayeux-sur-Mer and the sands at Brighton Plage.Main line trains to Paris take about 2 hours and cost about 48Euro return for an adult.

Le Crotoy has had lengthy visits from some famous figures of French history: Joan of Arc (who was imprisoned there), Jules Verne (who wrote his 1870 novel Twenty Thousand Leagues Under the Seas here), the perfumer Guerlain who has created in regard of the special shades of blue, purple, violet which cover bay at down his well-known perfume, "L'Heure Bleue".

Several painters as Toulouse-Lautrec, Paul Signac, Pierre Risch, and the novelist Colette had also been charmed by Le Crotoy.