The Senate of Canada Building (French: Ă©difice du SĂ©nat du Canada) is a government building and former railway station that serves as the temporary seat of the Senate of Canada. Located at 2 Rideau Street in downtown Ottawa, it was known as Ottawa Union Station and served as the city's central railway station from 1912 until 1966. From 1966 to 2018, it was operated by the Government of Canada as the Government Conference Centre. The building currently includes a temporary Senate chamber (housed in the concourse of the former railway station), as well as some Senate offices and committee rooms (in the waiting room of the former station).
It is situated at the intersection of Wellington Street and the Rideau Canal, across the street from the Château Laurier hotel (which was constructed around the same time). It is 600 metres (2,000 ft) from Parliament Hill and Confederation Square.