Nuño Duarte Silva Marta (born 28 November 1976) is a Portuguese former road cyclist. He competed in the men's individual road race at the 1996 Summer Olympics.
Major results 2001 1st Road race, National Road Championships 2003 1st Overall GP CTT Correios de Portugal 1st Stage 1 2007 1st Overall Vuelta a Extremadura 1st Stage 3
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