William Whitney Rice (March 7, 1826 – March 1, 1896) was a U.S. Representative from Massachusetts.

Born in Deerfield, Massachusetts, Rice attended Gorham Academy, Maine, and graduated from Bowdoin College in Brunswick, Maine, in 1846. He served as the preceptor of Leicester Academy, Leicester, Massachusetts from 1847 to 1851 before studying law in Worcester. He was admitted to the bar in 1854 and commenced practice in Worcester. In 1858 he was appointed judge of insolvency for Worcester County.

Rice was elected mayor of the city of Worcester in December 1859.^[1] He served as district attorney for the middle district of Massachusetts from 1869 to 1874 and was a member of the State house of representatives in 1875.^[2]

Rice was elected a member of the American Antiquarian Society in 1885.^[3]

Rice was elected as a Republican to the Forty-fifth and to the four succeeding Congresses (March 4, 1877 – March 3, 1887). After a failed re-election bid in 1886, he returned to Worcester and resumed the practice of law. He died there on March 1, 1896, at age 69, and was interred at Worcester Rural Cemetery.

William was a direct descendant of Edmund Rice, an English immigrant to Massachusetts Bay Colony.^[4] He married Alice Miller (1840–1900), whose mother Nancy Merrick Miller was sister to Massachusetts judge Pliny T. Merrick.^[5][6] Alice's sister, Ruth Ann Miller, married U.S. Senator George Frisbie Hoar, making Rice and Hoar brothers-in-law. Alice founded a children's day nursery in Worcester.^[6]

• 1875 Massachusetts legislature

 This article incorporates public domain material from the Biographical Directory of the United States Congress

• William Whiitney Rice. New York Times obituary March 2, 1896.
• Hoar, Rockwood: William Whitney Rice A Biographical Sketch (1897).