Isaac Lodewijk la Fargue van Nieuwland (1726–1805), was an 18th-century painter from the Dutch Republic.
He was born in The Hague to Jan Thomas la Fargue and was the younger brother of Paulus Constantijn la Fargue.[1] His other siblings Maria Margaretha, Karel and Jacob Elias also became painters.[1] In 1768 he became a member of the Confrerie Pictura.[1] He engraved some of the portraits in the Tooneel der uitmuntende schilders van Europa, a dictionary of painters that was illustrated by his brother Paulus Constantijn. Perhaps because of this work, he is known more for portraits than landscapes.He died in The Hague.