Henry Frederick, Hereditary Prince of the Palatinate, (German: Heinrich Friedrich) (1 January 1614 – 7 January 1629 The Netherlands) was the eldest son of Frederick V, the Winter King, and his wife, Elizabeth Stuart, daughter of King James I of England.
Frederick Henry drowned at the age of 15. He was on his way to Amsterdam to see the captured Spanish treasure fleet there and drowned crossing the Haarlemmermeer.