Lugha za Kiumbria ni jina la kundi la lugha za kale zilizotumika hasa katikati na kusini mwa rasi ya Italia. Kundi hilo linaainishwa kama mojawapo kati ya yale ya lugha za Kihindi-Kiulaya. Zote zilikoma kufikia mwanzo wa milenia ya 1 BK kwa kuzidiwa na Kilatini. Villar, Francisco (1997). Gli Indoeuropei e le origini dell'Europa (in Italian). ISBN 88-15-05708-0.  Adams, Douglas Q., and James P. Mallory. 1997. "Italic languages." In The encyclopedia of Indo-European culture. Edited by James P. Mallory and Douglas Q. Adams, 314–19. Chicago: Fitzroy Dearborn. Baldi, Philip. 2002. The foundations of Latin. Berlin: de Gruyter. Beeler, Madison S. 1952. "The relation of Latin and Osco-Umbrian." Language 28: 435–43. ————. 1966. "The interrelationships within Italic." In Ancient Indo-European dialects: Proceedings of the Conference on Indo-European Linguistics held at the University of California, Los Angeles, April 25–27, 1963. Edited by Henrik Birnbaum and Jaan Puhvel, 51–58. Berkeley: Univ. of California Press. Buck, Carl Darling. 1928.