Year 1933 (MCMXXXIII) was a Common year starting on Sunday of the Gregorian calendar.
- Big Bill, the largest hog on record, reached 9 feet and 2,500 pounds.
- The chocolate chip cookie is invented by Ruth Wakefield.
- April 7 - Beer is legalized in the United States, eight months before the full repeal of Prohibition in December.
- May 8 – Mohandas Gandhi begins a 3-week hunger strike because of the mistreatment of the lower castes.