AER or Aer may refer to:
Aerosmith is an American rock band, sometimes referred to as "the Bad Boys from Boston" and "America's Greatest Rock and Roll Band".
Aer Lingus, (/ˌɛər ˈlɪŋɡəs/, an anglicisation of the Irish Aer Loingeas meaning "air fleet") is the flag carrier airline of Ireland and the second-largest airline in Ireland.
Aerial refueling, also referred to as air refueling, in-flight refueling (IFR), air-to-air refueling (AAR), and tanking, is the process of transferring aviation fuel from one military aircraft (the tanker) to another (the receiver) during flight.
The Aero L-39 Albatros is a high-performance jet trainer aircraft developed in Czechoslovakia by Aero Vodochody.
Aerial photography is the taking of photographs of the ground from an elevated/direct-down position. Usually the camera is not supported by a ground-based structure.
The Aeronca Model 7 Champion, commonly known as the "Champ", or "Airknocker", is a single-engine, two-seat, light airplane, with a high wing and fixed conventional landing gear.
Aerodynamics, from Greek ἀήρ aer (air) + δυναμική (dynamics), is a branch of fluid dynamics concerned with studying the motion of air, particularly when it interacts with a solid object, such as an airplane wing.
The Aero L-159 ALCA is a light subsonic attack jet and advanced trainer produced in the Czech Republic by Aero Vodochody.
Aeroponics is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium (known as geoponics).