Tregenza

Tregenza is a Cornish surname. It derives from Tregenza in the parish of Creed; Tregenza is formed from the elements "tre" and "kensyth". 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, American cinematographer and film director
Rod Tregenza, Australian rules footballer
Sharon Tregenza, British children's author
Simon Tregenza, Australian rules footballer