Peggy Knudsen (22 April 1923 – 11 Julie 1980) was 'n Amerikaanse aktrise. Sy was bekend vir haar rolle in die rolprente Humoresque (1946), The Big Sleep (1946), en Istanbul (1957), en in die televisiereeks Alfred Hitchcock Presents (1955). 1946: Humoresque 1946: The Big Sleep 1947: Roses Are Red 1947: Stallion Road 1948: Perilous Waters 1948: Half Past Midnight 1948: Trouble Preferred 1955: Betrayed Women 1957: Istanbul 1955: Alfred Hitchcock Presents 1955: So This Is Hollywood 1962: Howie Peggy Knudsen in die Internet-rolprentdatabasis