Allston is a neighborhood of Boston, Massachusetts, located in the western part of the city. It comprises the land covered by the zip code 02134. For the most part, Allston is administered collectively with the adjacent neighborhood of Brighton. The two are often referred to together as "Allston-Brighton".

Housing stock varies but largely consists of brick apartment buildings, especially on Commonwealth Avenue and the streets directly off 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.