(January 1, 1832 – November 15, 1868) was an Irish-American Catholic priest, and second President of the University of Notre Dame from 1865 to 1866.

Patrick Dillon served as the second president of the University of Notre Dame from 1865 to 1866.

His brief tenure featured the construction of the second main building.

[1] Dillon instituted the Commercial Course, which offered students the opportunity to study bookkeeping and commercial law.

[4] Dillon Hall at the University of Notre Dame was dedicated in 1931 in his honor.