Mario Bettinus (Italian name: Mario Bettini; 6 February 1582 – 7 November 1657) was an Italian Jesuit philosopher, mathematician and astronomer. The lunar crater Bettinus was named after him by Giovanni Riccioli in 1651. His Apiaria Universae Philosophiae Mathematicae is an encyclopedic collection of mathematical curiosities. This work had been reviewed by Christoph Grienberger. Bettini was one of the fiercest Jesuit critics of Cavalieri's method of Indivisibles.
- Apiaria Universae Philosophiae Mathematicae, 1642
- Aerarium philosophiae mathematicae (in Latin). 1. Bologna: Giovanni Battista Ferroni. 1647.
- Scott, John M., S.J. (Fall 1995), "34 Jesuits on the Moon" (PDF), Creighton University Window: 12–15.
- Andersen, Kirsti (2008), The Geometry of an Art: The History of the Mathematical Theory of Perspective from Alberti to Monge, Sources and Studies in the History of Mathematics and Physical Sciences, Springer, p. 374, ISBN 9780387489469.
- Gorman, Michael John (2003), "Mathematics and modesty in the Society of Jesus: The Problems of Christoph Grienberger (1564–1636)", in Feingold, Mordechai (ed.), The New Science and Jesuit Science: Seventeenth Century Perspectives, Archimedes, 6, Dordrecht: Kluwer, pp. 1–120, archived from the original on March 13, 2005.
- Amir Alexander (2014). Infinitesimal: How a Dangerous Mathematical Theory Shaped the Modern World. Scientific American / Farrar, Straus and Giroux. ISBN 978-0374176815.
- Bettini's (1642, 2 vol.) Apiaria universae philosophiae mathematicae - Linda Hall Library