Des Allemands is an unincorporated community and census-designated place (CDP) in Lafourche and St. Charles parishes in the southeastern part of the U.S. state of Louisiana.

[2] The town, known as the "Catfish Capital of the Universe",[3] is along the Bayou des Allemands, which is the boundary of Lafourche and St. Charles parishes.

In 1721, John Law and the Company of the Indies settled Germans along the Mississippi River, north of Ouachas Lake.

But they experienced hostility from the Native Americans in that area, and moved to a location much closer to the colonial capital of New Orleans.

U.S. Route 90 (future Interstate 49) crosses Bayou des Allemands at this point; the four-lane highway leads northeast 34 miles (55 km) to New Orleans and west 51 miles (82 km) to Morgan City.

[9] As of the 2020 United States census, there were 2,179 people, 670 households, and 468 families residing in the CDP.