James Joseph "J.J." Foy (February 22, 1847 – June 13, 1916) was an Ontario lawyer and political figure. He represented Toronto South in the Legislative Assembly of Ontario as a Conservative member from 1898 to 1916. He was born in Toronto, the son of Patrick Foy, a Toronto merchant, and educated at St. Michael's College, Toronto and Ushaw College. He was called to the bar in 1871 and set up practice with a law firm in Toronto. In 1879, he married Marie Cuvillier. Foy was named Queen's Counsel in 1883. He died in office in 1916.