John Boyd (September 28, 1826 – December 4, 1893) was a businessman and the eighth Lieutenant Governor of New Brunswick following Canadian confederation. Born to a Protestant family in Magherafelt, Ireland, Boyd and his younger brother immigrated to New Brunswick with their mother in 1833, two years after the death of his father. He apprenticed at British and Foreign Dry Goods and eventually became a buyer and then, in 1854, full partner in the firm.