Condado de Treviño ("County of Treviño") is a municipality in the province of Burgos, autonomous community of Castile and León, Spain. This municipality and the geographically smaller La Puebla de Arganzón make up the enclave of Treviño. Although the enclave is part of Burgos (and, hence, part of the autonomous community of Castile and León) it is surrounded by the province of Álava, part of the autonomous community of the Basque Country. Hence, properly speaking, the enclave of Treviño is an enclave within Álava, and an exclave of Burgos.

As of 2009, the municipality has a population of 1,432.