Model 1

Model 1 may refer to:


 * Austin Model 1, a semi-empirical method for the quantum calculation of molecular electronic structure in computational chemistry
 * Boeing Model 1, a United States single-engine biplane seaplane aircraft
 * Breese-Dallas Model 1, a prototype single engine airliner that rapidly changed hands throughout the 1930s
 * Fleet Model 1, a biplane from 1928
 * JSP model 1 architecture, a design pattern used in the design of Java Web applications
 * Sega Model 1, an arcade system board released by Sega in 1992
 * Smith & Wesson Model 1, an American revolver produced from 1876 through 1911