The 1943 Atlantic hurricane season was an ongoing event in the annual cycle of tropical cyclone formation. It officially began on June 1, 1943 and ended on November 30, 1943.

The 1943 hurricane season was fairly quiet but was significant for one event. In July, the first intentional flight into a hurricane was flown into what became known as the Surprise Hurricane. It was conducted by an Army Air Corps (now the United States Air Force) aircraft. Valuable information was gathered about hurricanes and hurricane structure. Two more flights were made that season into a different hurricane, this one stronger, in the mid-Atlantic during August. This would pave the way for the Hurricane Hunters we know today.

See also

• List of Atlantic hurricane seasons
• List of notable tropical cyclones