Harris Hawthorne Wilder (April 7, 1864 – February 27, 1928) was an American zoologist and anatomist.

He was professor of zoology at Smith College in Massachusetts, where for 36 years until his death.

[2][3][4] Hawthorne was born in Bangor, Maine, the only child of parents Solon and Sarah Watkins Wilder (née Smith).

He then taught high school biology in Chicago for three years before attending the University of Freiburg in Germany.

[5] On July 26, 1906, he married Inez L. Whipple, a Smith College instructor and former research assistant.