Robert Leonard Hazen (15 October 1808 – 15 August 1874) was a Canadian lawyer, judge, and politician.
He had a successful legal career, and by 1846 was appointed a judge on the Court of the Vice-Admiralty.
He first entered politics in 1837 when he was elected to the Legislative Assembly of New Brunswick.
Upon Canadian Confederation he was appointed to the new Senate of Canada on 23 October 1867 by royal proclamation.
[1] This article about a member of the Legislative Assembly of New Brunswick is a stub.