Cabbio was a municipality in the district of Mendrisio in the canton of Ticino in Switzerland . On 25 October 2009. the municipalities of Bruzella , Cabbio, Caneggio , Morbio Superiore , Muggio , Sagno , and Breggia merged into the municipality of Breggia

Cabbio is first mentioned in 1188 as Cabio. The village was mentioned again in 1299 as a part of the holdings of Como Cathedral and Rusca Castle in Como. It was part of the parish of Muggio until the first half of the 17th century, and part of the political municipality until 1673. It was part of the parish of Balerna until the early 19th century.