Millicent Vernon Hammond Fenwick (February 25, 1910 – September 16, 1992) was an American fashion editor, politician and diplomat. A four-term Republican member of the United States House of Representatives from New Jersey, she entered politics late in life and was renowned for her energy and colorful enthusiasm. She was regarded as a moderate and progressive within her party and was outspoken in favor of civil rights and the women's movement. She was considered the inspiration behind Lacey Davenport, a fictional character in Garry Trudeau's comic strip Doonesbury.
Born Millicent Vernon Hammond, she was the middle of three children born to renowned politician and later Ambassador to Spain, Ogden Haggerty Hammond (October 13, 1869 – October 29, 1956) of Louisville, Kentucky and his first wife, Mary Picton Stevens (May 16, 1885 – May 7, 1915) of Hoboken, New Jersey. Her paternal grandparents were General John Henry Hammond (June 30, 1833 – April 30, 1890), who served as chief of staff for William Tecumseh Sherman during the Vicksburg Campaign, and Sophia Vernon Wolfe (1842 – May 20, 1923), daughter of Nathaniel Wolfe, a lawyer and legislator from Louisville. Her maternal grandparents were John Stevens (July 1856 – January 21, 1895), oldest son of Stevens Institute of Technology founder Edwin Augustus Stevens and grandson of inventor John Stevens, and Mary Marshall McGuire (May 4, 1850 – May 2, 1905).