Wiik is a Norwegian, a Swedish and a Finnish surname.
People with the surname Wiik include:
Academics Björn Wiik, a Norwegian physicist Fredrik Johan Wiik, a Finnish geologist Kalevi Wiik, a Finnish linguist
Performers Aurélien Wiik, a French actor Håvard Wiik, a Norwegian musician Øystein Wiik, a Norwegian actor and singer Ryan Wiik, an actor
Politicians Johan Wiik, a Finnish politician Karl H. Wiik, a Finnish politician Jofrid Wiik, a Norwegian politician Lise Wiik, a Norwegian politician
Sportspeople Melissa Wiik, a Norwegian footballer Lisa Wiik, a Norwegian snowboarder Rolf Wiik, a Finnish fencer
Others Maria Wiik, a Finnish painter