A90

A90 or A-90 may refer to:


 * A-90 Orlyonok, a Soviet model of Ekranoplan
 * A90 road, a road connecting Edinburgh and Fraserburgh (both in Scotland)
 * A90 TRACON, an FAA Air Traffic Control facility in Merrimack, NH
 * Austin A90 motor car, either the Austin Atlantic or Austin Westminster
 * Autostrada A90, the orbital motorway that encircles Rome
 * Conventional ampere, a unit of measurement, symbol A90
 * Dutch Defence, in the Encyclopaedia of Chess Openings
 * Hanlin eReader A90, an ebook reader
 * Samsung Galaxy A90 5G, smartphone released in 2019


 * Toyota Supra ( A90 ), a sport car from Japanese Automaker, Toyota


 * A-90, an entity from a Roblox game called DOORS