1A

1A or 1-A may refer to:

Adcox 1-A, a biplane built in Portland, USA in 1929
Alpha 1A, an alpha-amylase human gene
Alpha-1A adrenergic receptor, a human gene
Amadeus IT Group, a travel reservation technology company
Arginine vasopressin receptor 1A, a human gene
Astra 1A, the first satellite launched and operated by Société Européenne des Satellites
California Proposition 1A (2004),
Class 1-A, a classification of the Selective Service System : available for unrestricted military service
Croatian 1A Volleyball League
Essex bus routes 1 and 1A
First Amendment (disambiguation), the first amendment of various legislation
- First Amendment to the United States Constitution, regarding free speech and religion
Interferon beta-1a, a drug in the interferon family
Little Joe 1A, a 1959 unmanned NASA launch
Melatonin receptor 1A, a human gene
Meltwater pulse 1A, a period of rapid deglacialization that took place 14.7-14.2 thousand years ago
Mercury-Redstone 1A, a 1969 NASA mission
Metallothionein 1A, a human gene
MH-1A, a nuclear power reactor and the first floating nuclear power station
Packard 1A-1500, a 1929 12-cylinder liquid-cooled 60-degree Vee piston aircraft engine
Pre-1A, a grade in the Jewish day school structure of education
Secretoglobin, family 1A, member 1 (uteroglobin), a human gene
ShinMaywa US-1A, a Japanese anti-submarine warfare aircraft
Sisu 1A, a homebuilt sailplane
Turksat 1A, a satellite
1A (comics) or Magnus, Robot Fighter
"1-A", a story by Thomas M. Disch

See also