William Henry Paine Hatch, Ph.D., D.D. (August 2, 1875 – November 11, 1972) was an American theologian, born at Camden, N. J. He attended Harvard, graduating in 1898 (Ph.D., 1904). Afterward, he graduated at the Episcopal Theological Seminary in Cambridge, Massachusetts, and from the General Theological Seminary in New York City. He was ordained to the Episcopal priesthood in 1902. Dr. Hatch published many articles and reviews and was the author of The Pauline Idea of Faith (1917), and with C. C. Edmunds, The Gospel Manuscripts of the General Theological Seminary (1918).
- W. H. P. Hatch, The Principal Uncial Manuscripts of the New Testament (Chicago, 1939).
- W. H. P. Hatch (1946). An album of dated Syriac manuscripts. Boston: The American Academy of Arts and Sciences, reprinted in 2002 by Gorgias Press. ISBN 1-931956-53-7.
- W. H. P. Hatch, Facsimiles and descriptions of minuscule manuscripts of the New Testament (Cambridge, 1951).
- C. C. Edmunds, and W. H. P. Hatch, The Gospel Manuscripts of the General Theological Seminary, HTS 4 (1918), pp. 7, 50-68.