William P. Frye, American lawyer and politician (born 1830)

William Pierce Frye was an American politician from Maine. A member of the Republican Party, Frye spent most of his political career as a legislator, serving in the Maine House of Representatives and then U.S. House of Representatives, before being elected to the U.S. Senate, where he served for 30 years before dying in office. Frye was a member of the Frye political family, and was the grandfather of Wallace H. White Jr., and the son of John March Frye. He was also a prominent member of the Peucinian Society tradition.