The invention provides a triarylamine derivative and an electrophotographic photosensitive member. The triarylamine derivative is represented by general formula (I). In general formula (I), R 1 and R 2 each represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. In general formula (I), m and n each represent an integer of at least 0 and no greater than 4. When m and n represent integers greater than 1, chemical groups R 1 bonded to the same aromatic ring and chemical groups R 2 bonded to the same aromatic ring may be the same or different to one another.