A2A (disambiguation)
# A2A (disambiguation)

A2A is an Italian company.

A2A may also refer to:

* The Algonquin to Adirondacks Collaborative (A2A)
* The adenosine $A_{2A}$ receptor
* The UK Access to Archives (A2A) programme, see The National Archives (United Kingdom)#"Access to Archives"
* The A2A radio transmission mode, see Types of radio emissions#Low-speed data
* The Alaska-Alberta Railway Development Corporation (A2A Rail)
