Katherine Duffy, known professionally as Kate Price, was an Irish-American actress. She is known for playing the role of Mrs. Kelly in the comedy series The Cohens and Kellys, made by Universal Pictures between 1926 and 1932. Price appeared in 296 movies from 1910 to 1937.

The Cohens and Kellys is a 1926 American silent comedy film directed by Harry A. Pollard and starring Charles Murray, George Sidney, Kate Price, and Jason Robards Sr. The film is the first of the Cohens and Kellys film serials. The film is perhaps best known today as the subject of Nichols v. Universal Pictures Corp., a copyright infringement case, in which Judge Learned Hand articulated the doctrine that copyright protection does not cover the characteristics of stock characters in a story.