Abraham Willet (1825 – 1888) was a Dutch art collector and amateur painter. Willet was born in Amsterdam and married Louisa Holthuysen on 17 July 1861. Willet was a member of Arti et Amicitiae. For years, his art collection was considered the basis of the Willet-Holthuysen museum collection, but recent research has shown that his wife was perhaps more influential in forming the collection. * Une heure de la nuit, by Joseph Michel Ange Pollett * Portrait of Willet by Coen Metzelaar * Willet in a schutterij costume, by Andrzej Jerzy Mniszech, 1877