Look up Catholicon or catholicon in Wiktionary, the free dictionary.
Catholicon may refer to:
- Catholicon, the conventual church at the centre of an abbey
- Katholikon, the primary church in an Orthodox or Eastern Catholic monastery
- Catholicon (1286), book written in 1286 by Johannes de Balbis of Genoa (Summa grammaticalis quae vocatur Catholicon)
- Catholicon (trilingual dictionary), Breton–Latin–French dictionary written in 1464 by Jehan Lagadeuc and printed in 1499
- Catholicon (electuary), an alleged all-purpose cure (panacea) used in pre-modern medicine