A30 or A-30 may refer to:
Science A30 matriline, the name given to the most commonly seen orca matriline in British Columbia, Canada HLA-A30, a human serotype Leprosy and related conditions (ICD10 code "A30") Transportation Air transportation Aero A.30, a Czech light bomber developed in the late 1920s A-30 Martin Baltimore, an American attack/bomber aircraft Scott Valley Airport (IATA location identifier "A30") Automobiles Austin A30, a 1951–1956 British compact car Dongfeng Fengshen A30, a 2014–2019 Chinese subcompact sedan JAC Heyue A30, 2012–2019 Chinese subcompact sedan Aeolus A30, a Chinese saloon
Other Cruiser Mk VIII Challenger (A30), a British tank of World War II List of A30 roads
Other uses Samsung Galaxy A30, smartphone released in 2019 English Opening, code A30 (among others) in the Encyclopaedia of Chess Openings