- Dec 1 Eric Bloom, American rock vocalist/guitarist (Blue Öyster Cult), born in Brooklyn, New York
- Dec 1 John Densmore, American drummer (The Doors - "Light My Fire"; "L.A. Woman"), born in Los Angeles, California
- Dec 2 Gabriel Mekler, Israeli-American songwriter and record producer (Steppenwolf, Three Dog Night, Janis Joplin, Etta James), born in Palestine (d. 1977)
- Dec 3 António Variações [António Joaquim Rodrigues Ribeiro], Portuguese singer-songwriter (Dar & Receber), born in Braga, Portugal (d. 1984)
- Dec 4 Anna McGarrigle, Canadian folk music singer-songwriter, born in Montreal, Quebec
- Dec 4 Chris Hillman, American bluegrass, folk-rock, and country bassist, mandolin player, guitarist and singer-songwriter (The Byrds; The Flying Burrito Brothers, Desert Rose Band) - Turn Turn Turn), born in Los Angeles, California
- Dec 4 Craig Doerge, American session keyboard player, session musician, songwriter (Crosby, Stills & Nash; Jackson Browne), and record producer, born in Cleveland, Ohio
- Dec 4 Dennis Wilson, American drummer and vocalist (The Beach Boys), born in Hawthorne, California (d. 1983)
- Dec 4 Lynford "Hux" Brown, Jamaican session and touring guitarist (Jimmy Cliff; Paul Simon; Toots and the Maytals), born in Port Antonio, Jamaica (d. 2020)
- Dec 6 David "Fritz" Fryer, British pop guitarist and songwriter (The Four Pennies -"Juliet"), born in Oldham, Lancashire, England (d. 2007)
- Dec 6 Jonathan King, English singer and songwriter ("Everyone's Gone To The Moon") and record producer, born in London
- Dec 7 Daniel Chorzempa, American classical organist, and composer, born in Minneapolis, Minnesota (d. 2023)
- Dec 8 George Baker [Johannes Bouwens], Dutch singer and songwriter (Paloma Blanca, Little Green Bag), born in Hoorn, Netherlands
- Dec 9 Guy Darrell [John Swail], British singer (I've Been Hurt), born in Kent, England
- Dec 11 Brenda Lee [Brenda Mae Tarpley], American pop and country singer ("I'm Sorry"; "Rockin' Around the Christmas Tree"), born in Atlanta, Georgia
- Dec 11 David Ashley White, American composer and educator, born in San Antonio, Texas
- Dec 11 Jon Garrison, American tenor, born in Higginsville, Missouri
- Dec 12 (Alejandro) "Alex" Acuña, Peruvian-American session and touring drummer and percussionist (Weather Report; Lee Ritenour; Joni Mitchell), educator and producer, born in Pativilca, Peru
- Dec 12 Rob Tyner [Robert Derminer], American hard rock singer (MC5 - Kick Out The Jams), born in Detroit, Michigan (d. 1991)
- Dec 16 John Abercrombie, American jazz guitarist, born in Portchester, New York (d. 2017)
- Dec 17 Giedrė Lukšaitė-Mrázková, Lithuanian–Czech harpsichord player, organist, and educator, born in Kaunas, Lithuania
- Dec 18 (Roger) "Deke" Leonard, Welsh rock musician (Man), born in Llanelli, Wales (d. 2017)
- Dec 19 Alvin Lee, British rock vocalist and guitarist (10 Years After), born in Nottingham, England (d. 2013)
- Dec 19 Steve Tyrell [Bilao], American jazz and standards singer ("The Way You Look Tonight"), and Grammy Award-winning record producer (Rod Stewart; B.J. Thomas), born in Palo Pinto, Texas
- Dec 19 Zal Yanovsky, Canadian rock guitarist (Lovin' Spoonful - "Do You Believe in Magic?"), born in Toronto, Ontario (d. 2002)
- Dec 20 Bobby Colomby, American rock drummer (Blood Sweat & Tears - "Spinning Wheel"), born in New York City
- Dec 21 Michael Tilson Thomas, American conductor (San Francisco Symphony, 1995-2020), and composer (Shówa/Shoáh), born in Los Angeles, California
- Dec 22 (Michael) "Mo" Foster, British session and touring rock bassist and producer, born in Byfleet, Surrey, England
- Dec 22 Colin "Barry" Jenkins, English rock drummer (Animals - "House of the Rising Sun"), born in Leicester, United Kingdom
- Dec 24 Mike Curb, American pop singer, chorale master, and producer (Mike Curb Congregation - "Sweet Gingerbread Man"), born in Savannah, Georgia
- Dec 25 Emory Gordy Jr., American musician and music producer, born in Atlanta, Georgia
- Dec 25 Henry Vestine, American guitarist (Canned Heat), born in Takoma Park, Maryland (d. 1997)
- Dec 27 Mick Jones, English rock guitarist (Foreigner - "I Want to Know What Love Is"), born in Portsmouth, Hampshire, England
- Dec 27 Tracy Nelson, American blues rock singer (Mother Earth), born in Madison, Wisconsin
About December 1944
How Old? 79 years old
Generation: Silent Generation
Leap Year: Yes
Chinese Zodiac: Monkey
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Country Singers
Jazz Singers
Opera Singers
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