
ĭesmond's father, Emil Breitenfeld, was a pianist, organist, arranger, and composer. ĭesmond's mother, born Shirley King, was Catholic, and of Irish descent.

The Breitenfeld family in Bohemia and Vienna featured musicians in every generation throughout the 1800s, 1900s, and to the present day. Lewy, the maiden surname of Paul's paternal grandmother Hermine, is more likely to be of Jewish origin, but no evidence of her genealogy has surfaced." However, Fred Barton, songwriter/arranger and Desmond's cousin, found extensive genealogical proof that both the Breitenfeld and Löwy families were Bohemian Jews. There are plenty of Breitenfelds in Germany and Austria to support both sides of the argument. Biographer Ramsey notes that "the name Breitenfeld could be Jewish or non-Jewish. Interviewed by Desmond biographer Doug Ramsey, Desmond's first cousin Rick Breitenfeld said that no one in the Breitenfeld family could find evidence of Jewish ancestry or Jewish religious observance, but Paul Desmond and members of his father's family "frequently speculated as to whether or not Sigmund or Hermine Breitenfeld had Jewish backgrounds". Sigmund Breitenfeld, a medical doctor, emigrated to New York City with his wife Hermine (born Hermine Lewy) at the end of the 19th century, and the Breitenfelds raised their four children (including Desmond's father Emil) with no religion. His grandfather Sigmund Breitenfeld was, according to an obituary, born in Austria in 1857. Desmond was born Paul Emil Breitenfeld in San Francisco, California, in 1924, the son of Shirley (née King) and Emil Aron Breitenfeld.
