Thomas J. Campbell (April 28, 1848 – December 14, 1925) was the twelfth and fourteenth president of St. John's College (now Fordham University).

He left St. Francis in order to study French literature, ecclesiastical history, and theology at Louvain University, Belgium.

In 1893, Campbell was briefly a vice-rector of St. Francis Xavier College, and from 1893-1895 he spent his time giving missions and retreats.

For the next four years he continued to focus on the enrollment of students, the small amount of scholarships and donations compared to other universities, and encouraged more dedication to the sciences until his retirement in 1900.

[citation needed] Campbell then returned to New York as lecturer at the St. John's Graduate School, where he specialized in American history.