Tagma (from Greek τάγμα "something which has been ordered or arranged"; plural tagmata) may refer to: Tagma (biology), a grouping of segments, usually in arthropod anatomy Tagma (military), a subdivision of the Byzantine army Tagma (τάγμα), the Modern Greek term for an order (honour) Moha Tagma (born 1954), Moroccan diplomat See also Tagmeme (linguistics)