Rory secured a gripping victory at the US PGA, following his win at the Open Championship last month.
Councillor Andrew Muir said: “This is yet another fantastic victory for Rory McIlroy, placing him firmly in the history books among the world’s top golfers.
“Across North Down and Northern Ireland everyone is extremely proud of what Rory has achieved to date and are looking forward to watching his continued domination in Golf and his next big win.
“Rory is an outstanding ambassador for Northern Ireland and golf and his latest success will continue to inspire others to not only take up the sport but also visit Northern Ireland.”