Dr. Seuss on the Loose is an American animated musical television special, first airing on CBS on October 15, 1973. The special was commissioned and sponsored by Nestlé, and is hosted by The Cat in the Hat, who introduces animated adaptations of the Dr. Seuss stories The Sneetches, The Zax, and Green Eggs and Ham. Allan Sherman reprised his role as the voice of The Cat in the Hat from the 1971 television special, which marked his final role prior to his death on November 20, 1973. The special became a popular annual repeat for most of the decade until its last CBS showing on July 12, 1979.

The special aired in various countries in 1975, including ITV in England on January 1, and ABC-TV in Australia on September 21.

The anthology was released as Green Eggs and Ham and Other Stories for a sing-along videocassette distributed by Fox Video and released in 1994 (later re-printed in 1997) and a Blu-ray deluxe edition released in 2012.