Robert Watson Joseph Ghiz is a Canadian politician who served as the 31st premier of Prince Edward Island from 2007 to 2015. He is the son of the 27th premier, Joe Ghiz.

Joseph Atallah Ghiz was a Canadian politician and lawyer. He was the 27th premier of Prince Edward Island from 1986 to 1993, and was a justice of the Supreme Court of Prince Edward Island from 1995 until his death in 1996. He was the father of Robert Ghiz, the 31st premier of Prince Edward Island. Ghiz was the first premier of a Canadian province to be of non-European descent, since followed by Ujjal Dosanjh and Ghiz's son, Robert.