Con Constantine (born 1 July 1945) is a Cypriot Australian businessman and the former owner of the Australian football (soccer) club Newcastle United Jets.
Con Constantine migrated to Australia with his parents and siblings from the town of Maroni, near Larnaka, Cyprus at the age of 10. At a young age, he started working in a takeaway food store before going on to sell houseplants.
In 1985, he built Parklea Markets (on the site of a former drive-in cinema), initially operating it as a plant nursery while seeking council approval. After approval was granted, Parklea Markets quickly established itself as one of the premier retail destinations in Western Sydney.
In recent years, Constantine has expanded his interests to Newcastle, 150 km north of Sydney, where he is the owner of The Store. He recently purchased two Newcastle community papers, the Newcastle & Lake Macquarie Post and the Hunter Post, from Fairfax Media. Constantine is a supporter of his local Blacktown Greek Orthodox parish as well as many legitimate Sydney and Newcastle charities.
Constantine was the owner and chairman of Newcastle United Jets, an Australian professional football (soccer) club based in Newcastle. The club competes in the A-League and plays its home games at Hunter Stadium. They were the A-League Champions for the 2007–08 A-League season, after defeating the Central Coast Mariners 1-0 in the Grand Final. The club was formed in 2000 when it joined the National Soccer League as Newcastle United.