Western Sydney could be the venue for the 2026 or 2030 Commonwealth Games.
The region's leaders are keen to host the sporting event and will pitch the idea to NSW Premier Gladys Berejiklian on Friday.
Western Sydney Leadership Dialogue chairman Christopher Brown said it was a "no brainer".
"Western Sydney has a deep, rich sporting culture and everything in place to make it a success," he said in a statement.
Most of the necessary facilities are already present so it could be a "low cost" games.
The leadership group wants the premier to set up an exploratory committee and develop a business case for a possible bid for the 2026 or 2030 games.
The new push comes after 11 regional Victoria towns earlier this month floated a potential a bid for the 2030 games
"We don't think regional Victoria has nearly the appeal that this region presents and would cost taxpayers much more money," Mr Brown said.
Ms Berejiklian is expected to respond when she speaks at the Out There Summit at Parramatta in western Sydney at 3pm.