Robert Edward Windsor (born December 19, 1942 in Washington, D.C.) is a former tight end in the National Football League. Windsor played a total of nine seasons in the NFL, five with the San Francisco 49ers and four with the New England Patriots. He had two productive seasons as a starter with the 49ers in 1969 and 1970, starting all 14 games both seasons and recording 49 receptions (career high) and 597 yards in 1969 and 31 and 363 in 1970. With the Patriots, he became a starter in 1972, started all 14 games and had 33 receptions for 383 yards.