Rosanne Katon (born February 5, 1954 in New York City) is a Jamaican-American model, actress, comedian and activist. She was Playboy magazine's Playmate of the Month for its September 1978 issue. Her centerfold was photographed by Mario Casilli.

Katon, whose father was born in Jamaica, had several acting credits before appearing in Playboy (including a Broadway role in Godspell, and lead billing in the 1976 Cirio Santiago classic Ebony, Ivory & Jade). She continued to act afterwards both on TV and in the movies, and at one point segued into the world of stand-up comedy, even appearing in Playboy ' s June 1991 pictorial "Funny Girls," which covered female comedians. In 1984 she married Richard Walden, who is the president and chief executive officer of Operation USA, an international organization that supplies relief to Third World areas in need such as Rwanda, Cambodia and, recently, tsunami-ravaged Sri Lanka. Rosanne is an active participant with Operation USA.

The Waldens have two children, including a 10-year-old son who is autistic and an expert cellist. The family is featured in the 2007 documentary Autism: The Musical.

Playboy Playmate of the Month September 1978

Appeared as a guest on "Politically Incorrect" (November 28, 2001) with Chris Matthews, Stewart Copeland, and the Reverend Jerry Falwell.

Began attending the High School of the Performing Arts in New York City when she was only 13.

Appeared in a Metropolitan Life Insurance TV commercial at age 10.