- May 2 Svatopluk Havelka, Czech composer, born in Vrbice, Karviná, Czech Republic (d. 2009)
- May 13 Anthony Milner, British composer, born in Bristol, England (d. 2002)
- May 14 Al Porcino, American big band jazz and session trumpeter (Woody Herman, Stan Kenton), born in New York City (d. 2013)
- May 14 Patrice Munsel [Munsil], American operatic soprano (Metropolitan Opera, 1943-58; Patrice Munsel Show), born in Spokane, Washington (d. 2016)
- May 14 Tristram Ogilvie Cary, British-Australian composer, electronic music pioneer, and educator, born in Oxford, England (d. 2008)
- May 15 Andrei Yakoulevich Eshpai, Soviet composer, born in Kozmodemyansk, Mari Autonomous Region, Soviet Union (d. 2015)
- May 15 Emmanuel Ghent, Canadian American electronic music composer (Phosphones), born in Montreal, Quebec (d. 2003)
- May 16 Bobbejaan Schoepen, Belgian singer, entertainer and professional whistler, born in Boon, Belgium (d. 2010)
- May 20 Chester Ludgin, American operatic baritone (New York City Opera, 1957-91; San Francisco Opera, 1962-85), born in Brooklyn, New York City (d. 2003) [1]
- May 22 James King, American tenor, born in Dodge City, Kansas (d. 2005)
- May 23 Malcolm "Mac" Wiseman, American bluegrass singer, born in Crimora, Virginia (d. 2019)
- May 25 Aldo Clementi, Italian composer, born in Catania, Sicily (d. 2011)
- May 28 Dietrich Fischer-Dieskau, German baritone (Doktor Faust), born in Zehlendorf, Germany (d. 2012)
- May 29 Danny Davis [George Nowlan], American session trumpeter, pop-country music bandleader (The Nashville Brass - "I Saw the Light"), singer (Speed Racer theme), and record producer (Connie Francis), born in Dorchester, Massachusetts (d. 2008)
- May 30 Claude Prey, French composer, born in Fleury sur Andelle (d. 1998)
About May 1925
How Old? 98 or 99 years old
Generation: Greatest Generation
Leap Year: No
Country Singers
Jazz Musicians
Opera Singers
Pop Stars
Rappers
Rockers