Triarchy, synonym for triumvirate, is a political regime ruled or dominated by three powerful individuals.
Triarchy may also refer to:
Triarchy (theory), a proposition that there are three fundamental ways of getting things done in organisations: hierarchy, heterarchy and responsible autonomy Triarchy of Negroponte, a crusader state established on the island of Euboea
See also Triarchy of the Lost Lovers, an album by Rotting Christ Triarchic theory of intelligence Triumvirate (disambiguation)