Model A

Model A may refer to:


 * Ford Model A (1927–31), a model of car built by the Ford Motor Company
 * Ford Model A (1903–04), a model of car built by the Ford Motor Company
 * One of the letter-series models of Farmall tractors
 * John Deere Model A, a model of John Deere tractor build by Deere & Company
 * A structural model of personality in Socionics
 * A character mode in the video game Mega Man ZX Advent
 * Chu Hummingbird Model A, an experimental co-axial helicopter
 * Ritz Model A, ultralight aircraft
 * Wright Model A, an early aircraft