Cabahan (also known as Cabangahan or Puro Island) is an island in the province of Romblon in the Philippines. It has one sitio named Cabangahan, which is a part of barangay Guinbirayan, Santa Fe, Romblon. The local name of the island is Puro, which means "Island" in Onhan language; which is the native language of the island's inhabitants. The island was formerly an island barrio of Santa Fe, Romblon that existed from 1901 to 1917. In the 1903 Census on population, it had 24 residents.