John Hungerford Pollen (22 September 1858–1925) was an English Jesuit, known as a historian of the Protestant Reformation.
Pollen junior was educated at The Oratory School in Birmingham, and then London University.
[3] He was one of the group of Jesuit historians restoring the reputation of Robert Persons.
[4] He was influential in the history of the term Counter-Reformation, accepting for the Catholic side the appellation for the period of Catholic reform centred on the Council of Trent, but at the same time offering an interpretation that made it less reactive, in relation to the Protestant Reformation.
He was a correspondent of Georg Cantor, from 1896[7] and a founding member with Joseph Stanislaus Hansom of the Catholic Record Society in 1904.