David Alexander Ferguson (16 October 1844 – 5 May 1891) was an Australian politician.
He was born at Naria near Wellington to innkeeper Alexander Ferguson and Elizabeth Inglis.
He was educated at Bathurst and Redfern, and became a pastoralist, first managing his father's properties and then inheriting them in 1869.
[1] Ferguson was a Wellington alderman from 1879, and served as mayor in 1881.
[2] In 1882 he was elected to the New South Wales Legislative Assembly as the member for Wellington.