The Premier has confirmed the Minister will be appointed as part of a broader reshuffle of his Cabinet, expected later this week.
"This will provide the necessary support for our cities, and is something the business community supports," said Business NSW Chief Executive Daniel Hunter.
"Having cities fall under one Minister will enable coordinated focus on sustainable growth and new economy transition in the large city centres of the NSW economy," Mr Hunter said.
"A renewed focus on the Central Coast, Illawarra and the Hunter regions which are continuing to add so much to our state’s international and regional trading strength is pleasing to see.
"A whole of Government view of NSW economic centres is the right approach - and we look forward to the new Minister and a strengthened Greater Cities Commission advocating and enabling real investment, resilient infrastructure, liveability and attraction in these cities.
"Business NSW has for many years championed growth and state-wide collaboration through our strong business leadership teams in each of these six cities across the State.
"We look forward to working closely with the new Minister for Cities and the Greater Cities Commission in developing the vision with our members, and forming sound policy, strategy and investment directions," Mr Hunter said.