1942 (MCMXLII) is a common year of the Gregorian calendar that started on a Thursday.
- January 13: Charles Nelson Reilly's 11th birthday
- January 24: Ernest Borgnine's 25th birthday
- March 25: Gene Shalit's 16th birthday
- September 2: Mary Jo Catlett's third birthday
- September 19: Adam West's 13th birthday
- November 30: Eugene H. Krabs and Sheldon J. Plankton were born.
- December 1: Bruce Brown's fifth birthday
- December 15: Tim Conway's ninth birthday