Theme may refer to:

• Theme (music), the initial or principal melody in a musical piece.

• Theme (literature), the unifying subject or idea of a story.

• Theme music, signature music which recurs in a film, television program, or the like.

• Theme (computing), a custom graphical appearance for certain software, similar to a skin.

• Thema, an administrative district in the Byzantine Empire.

• Theme (linguistics), that part of a sentence which indicates what is being talked about.

• In philology, a theme is the inflexional base or stem of a word, consisting of the root with alteration or addition.

Tema | Thema | Thème