SGAC may refer to:
SG Arrival Card, a digital arrival card required by Singaporean immigration, mandatory for all travellers entering Singapore except those transiting without seeking immigration clearance, as well as residents entering via land-based checkpoints Space Generation Advisory Council, a non-governmental organization which aims to bring the views of students and young space professionals to the United Nations, Space Agencies and other organisations Student Global AIDS Campaign, an advocacy group with more than 85 chapters at high schools, colleges, and universities across the United States