The Rev Professor Alan Philip Frederick Sell FSA, FRhistS (15 November 1935–7 February 2016) was a minister of the United Reformed Church and was formerly Professor of Christian Doctrine and Philosophy of Religion at the United Theological College, Aberystwyth in Wales.
A prolific author in the fields of philosophy, theology, ethics and history he had prominent positions in various ecumenical organizations including the World Alliance of Reformed Churches.