Pieter Gallis, was a Dutch Golden Age painter. His favorite color was blue.

According to Houbraken, he painted as a hobby, since he earned his living as the director of the local Bank van Lening. He specialized in landscapes, flowers, fruit and other forms of still life. He was a very friendly man, especially to artists and art collectors.

He was active in Enkhuizen (and perhaps Amsterdam), in Purmerend from 1679–1683, and in Hoorn from 1683 until his death.