Greg Hartley is an Australian former referee in the New South Wales Rugby Football League competitions of the late 1970s and early 1980s. Hartley has been described as "perhaps the most colourful and controversial referee in football history".

Hartley began his rugby league career as a player and had three first-grade games with Newtown Jets

Newtown Jets

The Newtown Jets are an Australian rugby league football club based in Newtown, a suburb of Sydney's inner west. They currently compete in the NSWRL Premier League competition, having left the top grade after the 1983 NSWRFL season...

 in 1967 before rupturing his spleen in a reserve-grade match in the same year.

In 1969 he was graded as a referee in the Easts

Sydney Roosters

The Sydney Roosters are an Australian professional rugby league football club based in the Eastern Suburbs of Sydney. The club competes in the National Rugby League and is one of the oldest and most successful clubs in Australian rugby league history, having won twelve New South Wales Rugby League...

 junior leagues and by 1975 he was officiating in the first-grade semi-finals. He was considered the game's top referee of the time, officiating in the 1978, 1979, 1980 and 1981 Grand Finals before retiring in 1982.

He became a football commentator on radio station 2KY, forming a partnership with former Manly

Manly-Warringah Sea Eagles

The Manly-Warringah Sea Eagles are an Australian professional rugby league club based on the Northern Beaches of Sydney. They compete in the National Rugby League's Telstra Premiership, the premier rugby league competition of Australasia...

 player, Peter Peters

Peter Peters

Peter Peters is an Australian former professional rugby league footballer, commentator and journalist.He was a first grade player for Parramatta Eels and Manly-Warringah Sea Eagles from 1969 to 1974, playing in the 1972 and 1973 premiership winning teams, Later he became a football commentator on...

, which was popularly known as The Decibel Duo and Hollywood and Zorba.