The Celta breed of pig is an autochthonous breed raised in Galicia (northwest Spain), whose numbers are presently increasing. In this work, the content of 22 fatty acids was studied in samples of fat taken from three different deposits on the dressed carcasses (intramuscular, subcutaneous ventral and subcutaneous dorsal) of 14 Celta castrated male hogs. These were slaughtered at the age of 15 months after being fed a traditional diet mainly consisting, during the last three months of fattening, of chestnuts (fruit of Castanea sativa) . The intramuscular fat showed higher (37.93±1.27%) statistically significant values (P