Pieter Cornelisz van Slingelandt (20 October 1640 – 7 November 1691) was a Dutch Golden Age portrait painter who had been a pupil of Gerard Dou and is known as one of Leiden's fijnschilders.

[1] He was rather introverted and very methodical and conscientious, spending months on his works and striving for perfection.

[1] Houbraken especially liked a piece where a maid holds a mouse by the tail as a cat jumps for it.

[3] Though he appears in the catalogue raisonné of C. Hofstede de Groot, the only painting mentioned there is one that is no longer attributed to Slingelandt.

[3] His pupils were Jacob van der Sluys, and Jan Tilius.