Subject ( la, subiectus "lying beneath") may refer to:

Philosophy

*'' Hypokeimenon'', or ''subiectum'', in metaphysics, the "internal", non-objective being of a thing **

Subject (philosophy) A subject is a being who has a unique consciousness and/or unique personal experiences, or an entity that has a relationship with another entity that exists outside itself (called an "object"). A ''subject'' is an observer and an ''object'' is ...

, a being that has subjective experiences, subjective consciousness, or a relationship with another entity

Linguistics

* Subject (grammar), who or what a sentence or a clause is about * Subject case or nominative case, one of the grammatical cases for a noun

Music

* Subject (music), or 'theme' * The melodic material presented first in a fugue * Either of the two main groups of themes (first subject, second subject), in

sonata form Sonata form (also ''sonata-allegro form'' or ''first movement form'') is a musical structure generally consisting of three main sections: an exposition, a development, and a recapitulation. It has been used widely since the middle of the 18th c ...

* ''Subject'' (album), a 2003 album by Dwele

Science and technology

* The individual, whether an adult person, a child or infant, or an animal, who is the subject of research.

Computing

* Subjects (programming), core elements in the subject-oriented programming paradigm * Subject (access control) * An element in the Resource Description Framework * Subject (iMedia), Computer Science focuses on what happens inside a computer including programming, networking, security and cyber security. Creative iMedia focuses on the creative aspects such as graphics, video, animation and games design.

Library science and information science

* Subject (documents) (subject classification; subject indexing; subject searching) * Subject term or index term, a descriptor of a document used in bibliographic records

Other uses

* Commoner, an individual subjected to rule by an elite, e.g. in feudalism * Subject in a modern constitutional monarchy, e.g. British subject * Course (education), a unit of academic instruction