Off Center is a collection of five science fiction short stories by Damon Knight. The stories were originally published between 1952 and 1964 in Galaxy, If and other science fiction magazines. The first printing, by Ace, was bound dos-à-dos with Knight's The Rithian Terror, as Ace Double M-113. In 1969 the book was re-issued in the UK by Gollancz with the title Off Centre; the novella was omitted and three additional stories were included: "Dulcie and Decorum", "Masks", and "To Be Continued".