Robert Briton Selby (born March 27, 1945) is a Canadian former professional ice hockey left winger who played in the National Hockey League (NHL) for the Toronto Maple Leafs, Philadelphia Flyers and St. Louis Blues from 1965 to 1971.
He also played in the World Hockey Association (WHA) for the Quebec Nordiques, New England Whalers and Toronto Toros from 1972 to 1975.
In 1964–65, Selby was called up by the Toronto Maple Leafs to replace injured forward Ron Ellis in the NHL.
Struggling early on the next season, the Leafs sent Selby down to the minors to play with the Vancouver Canucks in the WHL.
After his playing career, Selby became a history teacher at North Toronto Collegiate Institute, from which he retired in 2010.