Antonio "Tony" J. Fas Alzamora (born November 16, 1948 in Cabo Rojo, Puerto Rico) is a Puerto Rican politician and Senator. As of 31 December 2011, he was the longest-serving legislator in the history of Puerto Rico, having served in ten Legislative Assemblies, one House of Representatives (from 1977 to 1980), and nine Senates (since 1980).