John Loughrin (November 26, 1852 – January 2, 1917) was an Ontario merchant and political figure. He represented Nipissing in the Legislative Assembly of Ontario from 1890 to 1902 as a Liberal member. He was born in Bromley Township, Canada West in 1852, the son of Irish immigrants, and was educated in Pembroke. He was a justice of the peace and served as reeve of Mattawa for three years. Loughrin was also chairman of the Separate School board. He operated a general store in Mattawa. In 1884, he married Bridget Gorman. John Loughrin succeeded William Doran as Nipissing stipendiary magistrate in June 1902 at a salary of $1,600. The former MLA functioned as Master of Titles and Registrar of Deeds for Nipissing. In Renfrew County following school in Pembroke, he worked as a clerk for Murray B