Roberto Sieburger

Roberto Guillermo Sieburger (born 26 February 1917) was an Argentinian sailor. Born in Buenos Aires, Argentina he competed at five Olympics between 1948 and 1968.

He is part of a sailing family. His father Julio Sieburger and uncle Enrique Sieburger, Sr. both competed at two Olympics. He sailed with his cousins Carlos Sieburger and Enrique Sieburger, Jr. to fourth place in the 5.5m class at the 1960 Olympics. His other cousin, Carlos and Enrique Jr's sister Marylin, married Jorge del Río Sálas, with whom he had sailed (also to fourth place) in the 5.5m class at the 1952 Olympics.

Together with Jorge del Rio's cousin Jorge Salas Chávez, his Sieburger-Salas extended family has sailors who made twenty Olympic appearances for Argentina.