An object is to provide an organic semiconductor element having excellent carrier mobility and heat resistance of a semiconductor active layer, an organic semiconductor composition for obtaining this element, an organic semiconductor film, and a method of manufacturing an organic semiconductor element in which the composition is used, and another object is to provide a compound and an oligomer or a polymer that are suitably used in the organic semiconductor element, the organic semiconductor composition, the organic semiconductor film, and the method of manufacturing an organic semiconductor element.The organic semiconductor element of the present invention includes a compound represented by Formula 1 below in a semiconductor active layer. In Formula 1, X represents a chalcogen atom, p and q each independently represent an integer of 0 to 2, and R1 and R2 each independently represent a halogen atom or a group represented by Formula W below.