Doris A. "Toukie" Smith (born April 25, 1955) is an American actress and model.  Smith is best known for her role as Eva Rawley on the NBC sitcom 227 (1989–90). She is the sister of fashion designer Willi Smith. 
She attended Fashion Institute of Technology.
Smith started her career in 1970 as a model, working for such brands as Chanel, Versace, Geoffrey Beene, Issey Miyake, Norma Kamali, Thierry Mugler, and Patrick Kelly. She also modeled for her brother's line.
She also had a successful print career, including a photo campaign for Yves St. Laurent as well as appearances in Vogue, ELLE, Ebony, Cosmopolitan, Redbook, and Seventeen magazines. In 1978, Smith was named Bloomingdale's Model of the Year and became the first African–American model to have a mannequin designed in her likeness.
From 1988–1996, Smith's long–term partner was actor Robert De Niro, with whom she had twin sons (Aaron Kendrick De Niro and Julian Henry De Niro; born 1995)  conceived by in vitro fertilization and delivered by a surrogate mother.
Smith said that the name "Toukie" comes from her grandmother, who used to play her a song about a fire engine that had a lot of energy.