John Weesop or Jan Weesop (name variations: 'Wessopp', 'Wisop', 'Wesep' and 'Wesop') (fl 1640–1653) was a portrait painter presumed to be of Flemish descent who is now only known for his works produced in the 1640s in England. His English patrons were predominantly prominent members of the royalist aristocracy.[1][2][3]