SEAC

SEAC may refer to:

• SEAC (computer), a first-generation electronic computer built in 1950
• Senior Enlisted Advisor to the Chairman, an advisor to the United States Joint Chiefs of Staff
• Senior Enlisted Advisor to the Chiefs of Staff Committee, the senior other ranks advisor of to the British Chiefs of Staff Committee
• SESAR European Airports Consortium, a participant in the reform of the fragmented European air traffic management system
• The Society for Electroanalytical Chemistry
• Society for Ethics Across the Curriculum
• South East Asia Command, a World War II Allied military command
• South East Atlantic Conference
• Southeastern Athletic Conference, an intercollegiate athletic conference of historically black colleges and universities in the United States (1929–1961)
• Student Environmental Action Coalition, a coalition of environmental groups in the United States and Canada
• Radio SEAC, see Sri Lanka Broadcasting Corporation
• South Eastern Agricultural College, later Wye College