Catherine Lee Lewis (December 27, 1916 – November 20, 1968) was an American actress on radio, film, and television. She is remembered best for numerous radio appearances but is also noted for making a number of film and television appearances in the last decade of her life.

She would be most identified as the sensibly droll secretary Jane Stacy rooming with scatterbrained Irma Peterson (Marie Wilson) in the 1947–54 radio and television comedy My Friend Irma. In recognition of her work as Jane Stacy, she received the Ideal Secretary Award from the Executive Secretaries Club in 1948. She would play Jane Stacy until 1953,  taking some time off from September 1948 and through the rest of the season due to overwork. She appeared on Sam Spade and I Love a Mystery.

She worked with and publicly assessed the radio performances of some of the greatest screen talents of the day, including Cary Grant, Gregory Peck, Joan Crawford, Joseph Cotten, June Havoc, and Humphrey Bogart.