Vincent Nicholas Foy (14 August 1915 – 13 March 2017) was a Canadian Roman Catholic cleric and theologian.

He consistently wrote and taught on the intrinsic evil of artificial contraception, and strongly upheld Pope Paul VI's encyclical Humanae vitae when the Canadian Conference of Catholic Bishops issued the Winnipeg Statement.

In 1947,  he was named the Secretary of the new Toronto Regional Tribunal, which he served later as Defender of the Bond and Judge.

He is best known for his untiring defense of Catholic teachings on marriage and family life, Pope Paul VI’s encyclical Humanae vitae.

According to records sought and obtained from nationwide diocesan archives before his death on March 13, 2017, Rev.

Vincent Foy, having lived a life of heroic sanctity, set records as the longest ordained and oldest diocesan priest in the history of the Archdiocese of Toronto and the longest ordained English-speaking diocesan priest, monsignor, and canon lawyer in the history of the Canada; and worldwide, four served longer.