Govert (or Govaert) Teuniszoon Flinck (January 25, 1615 – February 2, 1660) was a Dutch painter of the Dutch Golden Age.

Born at Cleves, he was apprenticed by his father to a silk mercer, but having secretly acquired a passion for drawing, was sent to Leeuwarden, where he boarded in the house of Lambert Jacobszon, a Mennonite, better known as an itinerant preacher than as a painter. Amongst the neighbours of Jacobszon at Leeuwarden were the sons and relations of Rombertus van Uylenburgh, whose daughter Saske married Rembrandt in 1634. Other members of the same family lived at Amsterdam, cultivating the arts either professionally or as amateurs. The pupils of Lambert probably gained some knowledge of Rembrandt by intercourse with the Uylenburghs. Certainly Joachim von Sandrart, who visited Holland in 1637, found Flinck acknowledged as one of Rembrandt's best pupils, and living habitually in the house of the dealer Hendrik Uylenburg at Amsterdam.

For many years Flinck laboured on the lines of Rembrandt, following that master's style in all the works which he executed between 1636 and 1648. With aspirations as a history painter, however, he looked to the swelling forms and grand action of Peter Paul Rubens, which led to many commissions for official and diplomatic painting. Flinck's relations with Cleves became in time very important. He was introduced to the court of the Great Elector, Friedrich Wilhelm I of Brandenburg, who married in 1646 Louisa of Orange. He obtained the patronage of John Maurice of Nassau, who was made stadtholder of Cleves in 1649.

In 1652 a citizen of Amsterdam, Flinck married in 1656 an heiress, daughter of Ver Hoeven, a director of the Dutch East India Company. He was already well-known even then in the patrician circles over which the brothers Cornelis and Andries de Graeff and the Echevin Six presided; he was on terms of intimacy with the poet Vondel and the treasurer Uitenbogaard. In his house, adorned with antique casts, costumes, and a noble collection of prints, he often received the stadtholder John Maurice, whose portrait is still preserved in the work of the learned Barleius. Flinck died in Amsterdam on February 2, 1660.