Richard B. Gaffin, Jr. is a Calvinist theologian, Presbyterian minister, and professor, Biblical and Systematic Theology, Emeritus at Westminster Theological Seminary in Philadelphia.
Gaffin was born to missionaries to China. Gaffin received a B.A. from Calvin College (1958), a B.D. (1961), Th.M. (1962), and Th.D. (1969) from Westminster Theological Seminary, and undertook graduate studies at Georg-August University of Göttingen (1962-1963). He has taught at Westminster since 1965. He is an ordained teaching elder in the Orthodox Presbyterian Church.