Katherine Emmet (March 13, 1878 – June 6, 1960) was an American actress on stage, in film, and in television, and a director of radio plays.

On radio, Emmet was known for adapting, directing, and sometimes acting in Shakespeare plays for a weekly program on WEAF in New York.

[5] "Audiences today have tabloid minds," she explained in 1927, "and, whether we like it or not, we must cut the classics to a length that they will tolerate, if we want them to be interested at all.

[7] She was later in the cast of radio soap operas, including Our Gal Sunday (1937-1955) and Front Page Farrell (1941-1942).

[11] She and Edith Wynne Matthison resigned from the board of directors at the Actors' Theatre in New York in 1928, in a contract dispute.