Pieter Withoos (1655 – 23 April 1692), was a Dutch Golden Age painter.
Withoos was born in Amersfoort. According to Houbraken he was the second son of Mathias Withoos, brother to the painters Johannes, Frans and Alida Withoos.[1] He painted flowers and all sorts of small insects and animals in watercolours, mostly for albums of garden art collectors.[1]
According to the RKD he moved with his family to Hoorn in the rampjaar, 1672.[2] He died in Amsterdam.