Abner Reid McClelan (January 4, 1831 – January 30, 1917) was a Canadian senator and the tenth Lieutenant Governor of New Brunswick.

Born in Riverside-Albert, New Brunswick, the son of Peter McClelan and Lucy (Robinson) McLelan, he was educated at Mount Allison Wesleyan Academy in Sackville, (now Mount Allison University).

He was elected to the Legislative Assembly of New Brunswick in 1854 and served until confederation in 1867 when he was called to the Senate of Canada for the senatorial division of New Brunswick.

A Liberal, he resigned in 1896 when he was appointed Lieutenant Governor of New Brunswick.

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