P.S. Your Cat Is Dead is a novel by James Kirkwood Jr., originally published in 1972, adapted from his play. The book and play later were adapted to film in 2002.

James Kirkwood Jr. was an American playwright, author and actor. In 1976 he received the Tony Award, the Drama Desk Award for Outstanding Book of a Musical, and the Pulitzer Prize for Drama for the Broadway hit A Chorus Line.