Ludwig von Erlichshausen (1410–1467) was the 31st Grand Master of the Teutonic Knights, serving from 1449/1450 to 1467.

As did his uncle and predecessor Konrad von Erlichshausen, Ludwig came from Ellrichshausen in Swabia, now part of Satteldorf in Baden-Württemberg.

After the death of his more compromising uncle in 1449, Ludwig became Grand Master in 1450, despite being of limited ability and bad temper.

In 1454/1455, the Neumark was first pawned, then sold to the Electorate of Brandenburg by the Treaties of Cölln and Mewe.

Their former capital of Marienburg was not the only loss, however, as the Order had to cede other areas in the Second Peace of Thorn in 1466: Pomerelia, Culmerland, Warmia, and a part of Pomesania including Marienwerder (Kwidzyn).