Gerard Valk (September 30, 1652 - October 21, 1726) was a Dutch engraver, globe maker, and map publisher active in Amsterdam in the latter half of the 17th century. He studied mathematics, navigation, and cartographer under Pieter Maasz Smit. He later worked in London for the map sellers Christopher Browne and David Loggan. In 1687 he established his own firm in Amsterdam in partnership with Petrus (Pieter) Schenk, who married his sister in the same year. They published under the imprint of Valk and Schenk. Initially they published maps and atlas, acquiring the map plates of Jodocus Hondius in 1694. Later, in 1701 they moved into the from Hondius offices where they began producing globes. Valk and Schenk quickly became known for producing the best globes in the Netherlands, a business on which they held a near monopoly for nearly 50 years. He joined the bookseller's guide in 1711. Around the same time Gerard introduced his son, Leonard, to the business. Leonard was nowhere near as sophisticated a cartographer as his father and ultimately, through neglect, lost much the firm's prestige. After his death the firm was taken over by his widow Maria.