Allston is a neighborhood of Boston, Massachusetts, USA, located in the western part of the city. It is, for the most part, administered collectively with the adjacent neighborhood of Brighton. The two are often referred to together as "Allston-Brighton". A large portion of Allston's population is students, mostly from Boston University, Boston College, Harvard University, and Emerson College

Housing stock varies but largely consists of brick apartment buildings, especially on Commonwealth Avenue and the streets directly off of it; while areas further down Brighton Avenue, close to Brighton, are largely dotted with wooden triple-deckers. Lower Allston, across the Massachusetts Turnpike from the rest of Allston, consists of mostly 1890-1920s single-family and multi-family Victorian homes.