Stephanie Lynne Niznik (born May 20, 1967) is an American film, television, and theatre actress most famous for her role as Nina Feeney on Everwood.

Stephanie Catherine Miller (born September 29, 1961) is an American political commentator, comedian and host of The Stephanie Miller Show, a liberal talk radio program produced in Los Angeles and syndicated nationally by Dial Global. In 2012, Talkers magazine ranked her the 11th most important radio talk show host in America.

Stephanie Leonidas (born 14 February 1984) is an English actress.

Stephanie Nicole Lemelin (born June 29, 1979, in Sewell, New Jersey, USA) is a American actress, writer and producer.