Marian McKnight (born December 19, 1936, Manning, South Carolina) is a former American beauty pageant winner.
She earned the 1957 Miss America title with a Marilyn Monroe act in the talent portion, and later worked with Monroe's ex-husband, Joe DiMaggio, for a Virginia supplier of military bases. Despite the contention of Monroe biographer Donald Spoto, McKnight denied that she and DiMaggio were romantically involved.
She married actor Gary Conway in 1958 after meeting at UCLA, they have two children, they are owners of Carmody McKnight winery.
She appeared in an episode of The Love Boat in 1984, along with Jean Bartel, Miss America, 1943; Nancy Fleming, Miss America, 1961; and Vanessa Williams, Miss America, 1984.