Isaac Davis (June 2, 1799 – April 1, 1883) was a lawyer and politician active in Worcester, Massachusetts.

Davis was born in Northborough, Massachusetts, graduated from Brown University in 1822, studied law until admitted to the bar in 1825, and began the practice in Worcester, Massachusetts, where he soon rose to eminence.

He was, from 1843 to 1854, a member of the Massachusetts Senate, and three times mayor of Worcester from 1856 to 1859, in 1858, and 1861.

[2] He was elected a member of the American Antiquarian Society in 1841,[3] and later served on its board of councilors from 1850 to 1883.

This article about a member of the Massachusetts State Senate is a stub.