Tregenza

Tregenza is a Cornish surname. It derives from Tregenza in the parish of Creed; Tregenza is formed from the elements "tre" (homestead) and "kensyth" (meaning unknown). Tregenna, Tregensoe, Tregensowe, and Tregenzo are possibly related names.

Notable people with the surname include:
 * Norman Tregenza, Republican member of the New Hampshire House of Representatives
 * Rob Tregenza (born 1950), American cinematographer and film director
 * Rod Tregenza (born 1979), Australian rules footballer
 * Sharon Tregenza, British children's author
 * Simon Tregenza (born 1971), Australian rules footballer