Marco Antonio Rigau Jiménez (born August 16, 1946) is a Puerto Rican-American politician and attorney affiliated to the Popular Democratic Party (PPD).
Rigau received his bachelor's in social sciences from the University of Puerto Rico on 1965, graduating magna cum laude.
From 1970 to 1971, Rigau also worked as a law clerk to Associate Judge Héctor Martínez Muñoz.
In 1972, he worked as counsel on United States and Puerto Rico Constitutional Law to the Minister of Justice of Canada.
The next year, he worked as counsel to the President and Minister of Justice of the Government of Haiti, during the process of drafting their current constitution and electoral laws.