4A or IV-A may refer to : * 4A,

Ararat International Airlines Ararat International Airlines was an airline headquartered in Yerevan, Armenia and based at the city's Zvartnots International Airport. The company (the name of which is derived from Mount Ararat) was founded in 2010. Fleet In January 2013, th ...

' IATA airline designator * 4A, a series of

Toyota A engine The Toyota A Series engines are a family of inline-four internal combustion engines with displacement from 1.3 L to 1.8 L produced by Toyota Motor Corporation. The series has cast iron engine blocks and aluminum cylinder hea ...

produced by Toyota Motor Corporation (1982-2002) * 4A, the production code for the 1974–75 ''Doctor Who'' serial ''

Robot A robot is a machine—especially one programmable by a computer—capable of carrying out a complex series of actions automatically. A robot can be guided by an external control device, or the control may be embedded within. Robots may be c ...

'' *

4A Centre for Contemporary Asian Art 4A Centre for Contemporary Asian Art, formerly known as Gallery 4A, 4A Galleries, Asia-Australia Arts Centre and also known simply as 4A, is an Australian independent not-for-profit organisation based in the Haymarket area of Sydney, New South W ...

, Sydney, Australia *

4A Engine The 4A Engine is a graphics middleware engine developed by 4A Games for use in their video game ''Metro 2033'', published by THQ. It supports Direct3D APIs 9, 10, 11, and recently 12, OpenGL 3.2, along with NVidia's PhysX, and also NVidia's 3D Vi ...

, a video game engine developed by ''4A Games'' *

4A Games 4A Games Limited is a Ukrainian-Maltese video game developer based in Sliema, Malta. The company was founded in Kyiv, Ukraine, in 2006 by three developers who departed from GSC Game World. In 2014, 4A Games moved its headquarters to Sliema, whe ...

, a video game development company in Ukraine *

Calabarzon Calabarzon (), formally known as the Southern Tagalog Mainland, is an administrative region in the Philippines, designated as Region IV-A. The region comprises five provinces: Batangas, Cavite, Laguna, Quezon, and Rizal; and one highly urban ...

or Region IV-A, a Region in the Philippines *

Pixel 4a The Pixel 4a and Pixel 4a (5G) are a pair of Android smartphones designed, developed, and marketed by Google as part of the Google Pixel product line. They collectively serve as mid-range variants of the Pixel 4 and Pixel 4 XL. The Pixel 4a was ...

, an Android smartphone *

Vermont Route 4A Vermont Route 4A (VT 4A) is a east–west state highway in Rutland County, Vermont, United States. It runs from Fair Haven to West Rutland. VT 4A was the former alignment of U.S. Route 4 (US 4) before it was relocated to an ...

, a highway in Vermont, U.S. * Zeolite 4A, a sodium-type

molecular sieve A molecular sieve is a material with pores (very small holes) of uniform size. These pore diameters are similar in size to small molecules, and thus large molecules cannot enter or be adsorbed, while smaller molecules can. As a mixture of molecu ...

See also