- Aug 6 Leland Smith, American composer, bassoonist and computer coder who led music publishing into the digital age (SCORE), born in Oakland, California (d. 2013)
- Aug 7 Felice Bryant, American songwriter (Bye Bye Love; Wake Up Little Susie), born in Milwaukee, Wisconsin (d. 2003)
- Aug 7 Julian Orbon De Soto, Cuban composer, born in Aviles, Spain (d. 1991)
- Aug 9 Robert Heppener, Dutch composer (Hymns & Conversations for 28 Harps; Memento), born in Amsterdam (d. 2009)
- Aug 11 Robert Linn, American composer, born in San Francisco (d. 1999)
- Aug 12 Earl Coleman, American jazz singer, born in Port Huron, Michigan (d. 1995)
- Aug 12 Sybil Michelow, South-African contralto and composer, born in Johannesburg (d. 2013)
- Aug 13 Benny Bailey, American jazz trumpeter, born in Cleveland, Ohio (d. 2005)
- Aug 15 Billy Pinkney, American bass vocalist (Drifters - "Ruby Baby"), born in Dalzell, South Carolina (d. 2007)
Oscar Peterson
Aug 15 Oscar Peterson, Canadian jazz pianist and composer, born in Montreal, Quebec (d. 2007)
Oscar Peterson
- Aug 18 Sonny Til [Earlington Carl Tilghman], American doo-wop singer (The Orioles), born in Baltimore, Maryland (d. 1981)
- Aug 23 Sulkhan Tsintsadze, Georgian composer, born in Gori, Soviet Union (d. 1991)
- Aug 23 Włodzimierz Kotoński, Polish composer, born in Warsaw, Poland (d. 2014)
- Aug 27 Tony Crombie, English jazz drummer and bandleader, born in Bishopsgate, London (d. 1999)
- Aug 27 Darry Cowl, French musician and actor, born in Vittel, France (d. 2006)
- Aug 28 Donald O'Connor, American dancer and actor (Singin' in the Rain), born in Chicago, Illinois (d. 2003)
- Aug 28 Billy Grammer, American country music singer and guitarist, born in Benton, Illinois (d. 2011)
About August 1925
How Old? 95 years old
Generation: Greatest Generation
Leap Year: No