MCAS

MCAS may refer to:


 * Maneuvering Characteristics Augmentation System, a flight control subsystem on the Boeing 737 MAX airplane designed to enhance pitch stability
 * Marine Corps Air Station, a designation of multiple installations of the United States Marine Corps
 * Massachusetts Comprehensive Assessment System, a standards-based education assessment system
 * Mast cell activation syndrome, an immunological disorder
 * Matrícula Consular or Matricula Consular de Alta Seguridad, an identification card issued by the Government of Mexico
 * Microsoft Cloud App Security, a cloud security product by Adallom
 * Multnomah Community Ability Scale, a standardized mental health assessment
 * Michigan City Area Schools a school district in Michigan City, Indiana