- Aug 2 Ara Parseghian, American College Football HOF coach (Northwestern; NCAA C'ship 1966, 73 Notre Dame), dies at 94
- Aug 3 Ángel Nieto, Spanish motorcycle racer (World C'ships: 50cc 1969, 70, 72, 75, 76, 77; 125cc 1971, 72, 79, 81, 82, 83, 84; 90 Grand Prix victories), dies in a road accident at 70
- Aug 5 Doug Insole, English cricketer (England batsman of the 50's, nine Tests), dies at 91
Betty Cuthbert (1938-2017)
Aug 6 Australian athlete (Olympic gold 100m, 200m, 4x100m 1956; 400m 1964), dies from dementia at 79
- Aug 6 Darren Daulton, American baseball catcher (MLB All-Star 1992, 93, 95; World Series 1997; Silver Slugger Award 1992; Philadelphia Phillies), dies of brain cancer at 55
- Aug 14 Frank Broyles, American collegiate athlete, and administrator (University of Arkansas Athletic Director, 1974-2007), dies at 92
Colin Meads (1936-2017)
Aug 20 New Zealand rugby union player and All Black great known as "Pinetree", dies of pancreatic cancer at 81
- Aug 22 Rafael "Felo" Ramírez, Cuban-American Spanish language sports announcer (Miami Marlins), dies at 94
- Aug 28 Bobby Boyd, American NFL cornerback (5 × All-Pro 1964–1968; NFL interceptions leader 1965; Baltimore Colts), dies of bladder cancer at 79
- Aug 28 Willie Duggan, Irish rugby union no. 8 (41 Tests Ireland, 4 British & Irish Lions; Blackrock College RFC, Sunday's Well RFC), dies from an aneurysm at 67
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