John Nevin Schaeffer (July 23, 1882 – June 10, 1942) was an American classicist from Danville, Pennsylvania who spent his career teaching at Franklin & Marshall College, from which he also received his bachelor's degree in 1903. He would later receive a second degree from Oriel College at the University of Oxford, where he was a Rhodes Scholar. With Henry Lamar Crosby, whom he met while teaching summer courses at the University of Pennsylvania, he authored Introduction to Greek, a popular textbook on ancient Greek which remained in print for 20 years following its publication.
- American Philological Association (1994). Biographical Dictionary of North American Classicists. Greenwood Publishing Group. pp. 566–. ISBN 978-0-313-24560-2.
- Biographical Dictionary of North American Classicists. American Philological Association. 1994. pp. 566–567. ISBN 0313245606.
- "Dr. John Nevin Schaeffer". Wilkes Barre Times Leader. June 11, 1942. p. 30. Retrieved February 18, 2018.(subscription required)
- Naedele, Walter (May 17, 2012). "Philip B. Schaeffer". The Philadelphia Inquirer. Retrieved February 18, 2018.