Fränkel (or Fraenkel) is a surname. Notable people with the surname include:

  • Abraham Fraenkel (1891–1965), German-Israeli mathematician, known for Zermelo–Fraenkel set theory
  • Albert Fraenkel (1864–1938), German physician
  • Albert Fränkel (1848–1916), German physician
  • Aviezri Fraenkel (born 1929), Israeli mathematician
  • Baruch Fränkel-Teomim (1760–1828), rabbi, Talmudist
  • David ben Naphtali Fränkel (c. 1704–1762), German rabbi
  • Eduard Fraenkel (1888–1965), German-English classical scholar
  • Ernst Fränkel (physician) (1844–1921), German gynaecologist
  • Ernst Fraenkel (linguist) (1881–1957), German linguist
  • Ernst Fraenkel (political scientist) (1898–1975), German political scientist
  • Fränkel (born 2000), Canadian singer
  • Gottfried S. Fraenkel (1901–1984), German-American entomologist
  • Hermann Fränkel (1888–1977), German-American classicist
  • Heinz Fraenkel-Conrat (1910–1999), German biochemist
  • Iwan Fränkel (born 1941), Surinamese footballer
  • Jonas Fränkel (1773–1846), German banker and philanthropist
  • Knut Frænkel (1870–1897), Swedish engineer and arctic explorer
  • Leó Frankel (Léo Fränkel) (1844–1896), Hungarian communist revolutionary
  • Naftali Frenkel, 16-year-old killed in the 2014 kidnapping and murder of Israeli teenagers
  • Purrel Fränkel (born 1976), Surinamese footballer
  • Ray Fränkel (born 1982), Dutch Surinamese footballer
  • Samuel Fränkel (1801–1881), German textile manufacturer
  • Sándor Ferenczi (1873–1933), Hungarian psychoanalyst, born Alexander Fränkel

See also

  • Frankel
  • Frankl
  • Frenkel