Taxiarches or its variant taxiarchos (from ), anglicized taxiarch, may refer to:

Taxiarch, equivalent to brigadier in ancient and modern Greek military terminology Archangels Michael and Gabriel are called the Taxiarchs in Greek Orthodoxy because they lead the heavenly host

Places Several places in Greece are named after the archangels, either in singular, Taxiarchis, or in plural, Taxiarches (Ταξιάρχες):

Taxiarches, Attica Taxiarchis, Aetolia-Acarnania Taxiarches, Achaea Taxiarchis, Grevena Taxiarchis, Chalkidiki Taxiarchis, Euboea Taxiarches, Drama Taxiarches, Elis Taxiarchis, Euboea Taxiarchis, Lesbos Taxiarches, Trikala