Leonard J. Swidler (born January 6, 1929) is Professor of Catholic Thought and Interreligious Dialogue at Temple University, Philadelphia, Pennsylvania, where he has taught since 1966. He is the co-founder (in 1964, with Arlene Swidler) and editor of the [1] Journal of Ecumenical Studies (quarterly). He is also the founder/president of the [2] Dialogue Institute (founded 1978), the senior advisor for iPub Global Connection a book publisher, and the founder and past president of the Association for the Rights of Catholics in the Church (1980–).