Cornelis Engelsz. was a Dutch Golden Age painter and the father of Johannes Cornelisz Verspronck.

Engelsz was born in Gouda. According to Houbraken, he was a pupil of Karel van Mander and a colleague of Frans Hals in Haarlem.

The Frans Hals Museum has several works by him and his son, the portrait painter Johannes Cornelisz Verspronck. According to the RKD he was a pupil of Cornelis Cornelisz and he became a member of the Haarlem Guild of St. Luke in 1593 and was from 1594 to 1621 a member of the schutterij there that he painted in 1618. He died in Haarlem.