Gregory Byrne "Greg" Whitby KSG AM (born 1 August 1952) is an Australian educator.
He currently serves as the Executive Director of Catholic Education Diocese of Parramatta, a system made up of more than 80 schools across Greater Western Sydney and the Blue Mountains, a position which he has held since 2006 .
Whitby started his career as a teacher in 1974, serving in a variety of school leadership positions before taking up his current role as Executive Director of Catholic Education Diocese of Parramatta.
In 2018, he was recognised with an Order of Australia award for his outstanding contribution to education and the transformation of schooling for young people across Greater Western Sydney..
Whitby regularly writes for the The Daily Telegraph in his weekly column which touches on issues affecting the education industry.