The logothetÃÂs tà Ân sekretà Ân () was an official supervising all the sekreta (fiscal departments) of the Byzantine Empire during the Komnenian period. In the early 13th century, his office evolved into the megas logothetes.
The post was first established by Emperor Alexios I Komnenos (r. 1081âÂÂ1118), in an attempt to improve the coordination of the various departments (sekreta). The fiscal departments in particular were further grouped under two other officials: the two principal treasury departments, the genikon and eidikon, were put under the megas logariastÃÂs tà Ân sekretà Ân (, "grand accountant of the sekreta"), while the megas logariastÃÂs tà Ân euagà Ân sekretà Ân () oversaw the "pious bureaux" (, euagàsekreta), i.e. imperial estates and religious foundations. In the late 12th century, the logothetÃÂs tà Ân sekretà Ân had become the megas logothetÃÂs, an office which survived until the Fall of Constantinople in May 1453.