Hayatoshi (Hayato Office) was the institution that belonged to Emonfu (Headquarters of the Outer Palace Guards) and later Hyobusho (ministry of military) on the Ritsuryo system (a system of centralized government based on the ritsuryo code).
隼人司（はやとし）は、律令制において衛門府、後に兵部省に属した機関。