Class A may refer to:
Communications technology Class-A amplifier, a category of electronic amplifier Class A network, in Internet technology, a type of large network Class A television service, a system for regulating low power stations in the United States
Sports Class A (baseball), a level of American Minor League Baseball Class A (classification), a Paralympic wheelchair fencing classification
Transportation
Class A airfield, a type of World War II British military installation Class A surface, in automotive design Class A, a type of commercial driver's license in the United States Class A, an ICAO airspace class Class A, a type of motorhome
Other uses Class A (novel), a 2004 CHERUB novel by Robert Muchamore Class A drug, a classification of drugs controlled by the UK Misuse of Drugs Act Class A office space, a Building Owners and Managers Association category Class A share, a class of stock shares Class A, a stellar classification Class A, a retired type of United States Army Service Uniform Class A foams, a type of foam used in firefighting
See also A class (disambiguation) Class B (disambiguation)