Paul-Ferdinand Gachet (30 July 1828 – 9 January 1909) was a French physician most famous for treating the painter Vincent van Gogh during his last weeks in Auvers-sur-Oise.
Gachet was a great supporter of artists and the Impressionist movement.
He was an amateur painter, signing his works "Paul van Ryssel", referring to his birthplace: Rijssel is the Dutch name of Lille.