Avery Felton Blake Sr. (April 8, 1907 – August 25, 1975) was an American college lacrosse player and coach.
The 1953 squad had the distinction of winning the USILA Class "B" National title, also losing just one game, to Hopkins.
Blake coached his son Avery, Jr., also an inductee into the National Lacrosse Hall of Fame, on these teams.
Blake, after Swarthmore, went on to coach at Penn, retiring just prior to the move by college lacrosse to the NCAA tournament format.
After his coaching tenure at Swarthmore, Blake remained active in the sport of lacrosse serving in an various administrative and rule-setting capacities.