Masanin gargajiya shine mutumin da ya ƙware a cikin nazarin adabin gargajiya, harshe, al'adu, ko fasaha, musamman na tsohuwar Girka da Roma. Haka kuma kalmar tana iya komawa ga wanda ke bin salon al’ada a adabi, fasaha, ko kade-kade, ko kuma wanda ke da ra’ayin mazan jiya ko na gargajiya ga wadannan fagage.
