Millie is a small locality in Moree Plains Shire, in northern New South Wales, Australia.

[4] According to William Ridley, "Millie" was a Kamilaroi name of meaning "white pipe clay" or "silicate of magnesia" (talc).

Another 1901 source suggested it came from an Australian Aboriginal word "Mil" meaning "eye".

[2] There was once a settlement there, also known as Millie, but all that remains of it now is an elaborate marble monument to Trooper James Duff who died at the Battle of Elands River in 1900.

On 24 April 1865, the bushranger Captain Thunderbolt and two accomplices had taken over the bar, when their revels were interrupted by the arrival of a group of police.