James Ainslie (1787-1844) was a Scottish pastoralist, best known as the first overseer of the property known as Duntroon in the Australian Capital Territory. During his time on the property between 1825 and 1835 he lived in a relationship with a Ngambri woman, Jya Ngambri. After 10 years at Duntroon, Ainslie returned to Scotland. Ainslie died in 1844.The suburb Ainslie, originally a part of Duntroon, is named after James Ainslie, as is Mount Ainslie.