Kathleen Maura Rice (born February 15, 1965 in New York City) is the current District Attorney of Nassau County, New York, elected on November 8, 2005. A Democrat, she defeated 30-year incumbent Denis Dillon, by a margin of 51%-49% (about 8000 votes).

Rice grew up in Garden City, and was one of 10 siblings in an Irish Catholic family. She graduated from The Catholic University of America in 1987 with a B.A. in English and graduated from Touro Law School in June 1991.

She began her career as a prosecutor in Brooklyn before being appointed Assistant United States Attorney in Philadelphia by then-Attorney General Janet Reno in 1999.