William Austin Dickinson (April 16, 1829 – August 16, 1895) was an American lawyer who lived and worked in Amherst, Massachusetts.

After graduating from both Williston Seminary and Amherst College, Dickinson taught briefly before pursuing a legal education.

In addition to his law practice and treasury work, Dickinson took part in numerous civic projects and responsibilities, such as moderating the town meetings from 1881 until his death, and acting as president of the Village Improvement Association.

[3] On July 1, 1856,[4] Dickinson married Susan Huntington Gilbert, a friend of his sister Emily from childhood.

They had three children and resided at the Evergreens, which stood, and still stands, adjacent to the Dickinson Homestead in downtown Amherst.