Robert Duvall is a 93-year-old from San Diego, California, U.S.. We trawled the web to determine that Robert Duvall's height is 5ft 8 (172.7 cm), but due to his age may this may cause shrinking over the coming years. Currently this makes him 1.1 inches shorter than the average male in the United States. Are you looking for more information about Robert Duvall and his career? We found resources at imdb.com & ibdb.com.