Busáras is the central bus station in Dublin, Ireland for Intercity and regional bus services operated by Bus Éireann. Designed in the International Modern style, Busáras is also a stop on the Red Line of the Luas system, in Store Street just before the terminus at Dublin Connolly railway station. Áras Mhic Dhiarmada is the official name of the building, which also includes the headquarters of the Department of Social Protection. CIÉ, parent of Bus Éireann, leases the lower floors from the department. Áras Mhic Dhiarmada is named after Seán Mac Diarmada, a leader of the Easter Rising in 1916.

Bus Éireann is a state-owned bus and coach operator providing services throughout Ireland, with the exception of Dublin and the Greater Dublin Area, where bus services are provided by sister company Dublin Bus. It is a subsidiary of Córas Iompair Éireann (CIÉ). The company's primary hub is Busáras, located in Store Street, Dublin. In 2022 it operated 229 Public Service Obligation Routes, 14 expressway routes and 8940 school transport routes.