An architrave (/ˈɑːrkᵻtreɪv/; from Italian:architrave, also called an epistyle; from Greek ἐπίστυλον epistylon "door frame") is the lintel or beam that rests on the capitals of the columns. It is an architectural element in Classical architecture.

The term can also be applied to all sides, including the vertical members, of a frame with mouldings around a door or window. The word architrave is also used to refer more generally to a style of mouldings (or other elements) framing the top of a door, window or other rectangular opening, where the horizontal "head" casing extends across the tops of the vertical side casings where the elements join (creating a butt joint, as opposed to a miter joint).