* Object (philosophy), a thing, being or concept
** Entity, something that is tangible and within the grasp of the senses
* Object (grammar), a sentence element, such as a direct object or an indirect object
* Goal, an aim, target or objective
* Physical body or object, in physics, a collection of masses
* Object, an entity treated by mathematical category theory#Categories, objects, and morphisms
* 3D modeling, a representation of a physical object
* Property type (National Register of Historic Places)#Object, a classification used by the U.S. National Register of Historic Places

In computing:
* Object (computer science), a language mechanism for binding data with methods that operate on that data
** Object-oriented programming (OOP), in which an object is an instance of a class or array
* Object file, the output of a compiler or other translator program (also known as "object code")
* Object (Information Processing), an information source for an information processor
* HTML element#Images_and_objects

In popular culture:
* Object, a song by The Cure on their 1979 album Three Imaginary Boys
* Objects from The Lost Room
* "Object", a song by Ween from La Cucaracha (album)