| Ca Rater Mallorquí | |
| Also Known As: | Ratonero Mallorquín |
| Country: | Mallorca (Balearic Islands, Spain) |
| Coat: | Short |
| Colour: | Black-and-tan, brown-and-tan, sometimes white patches or tricolour |
| Kc Name: | Govern Illes Balears |
| Kc Std: | http://boib.caib.es/pdf/2002156/mp23306.pdf |
| Kc2 Name: | Ministerio de Agricultura, Pesca y Alimentación |
| Kc2 Std: | https://www.boe.es/boe/dias/2004/03/30/pdfs/A13430-13435.pdf |
The Catalan; Valencian: '''Ca Rater Mallorquí'''|italic=no or Spanish; Castilian: '''Ratonero mallorquín'''|italic=no is a Spanish breed of dog of ratter type, found on the island of Mallorca in the Balearic Islands.
The origins of the breed are unclear, with no documentary evidence before the late nineteenth century. In the early twentieth century, Valencians migrated to Mallorca; they may have brought some ratters with them. It is widely believed that the Ca Rater Mallorquí is related to the Gos Rater Valencià; it is also possible that there was some infusion of English terrier blood in the history of the breed.
A breed society, the Catalan; Valencian: Club Espanyol del Ca Rater Mallorquí|italic=no, was established in 1990, and registrations were begun. The breed was recognised by the autonomous community of the Balearic Islands with the publication of the breed standard in the Butlletí Oficial de les Illes Balears in 2002, and in 2004 it received national recognition when the standard was published in the Boletín Oficial del Estado, the official journal of the government of Spain.
The Ca Rater Mallorquí is used on the island of Mallorca to hunt rats and rabbits. It is a good watchdog, and a good companion animal.