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 Fränkel (1848–1916), German physician Aviezri Fraenkel (born 1929), Israeli mathematician Baruch ben David Te'omim-Fränkel (1760–1828), Rabbi, Talmudist David ben Naphtali Fränkel (c 1704 – 1762), German rabbi Eduard Fraenkel (1888–1965), German-English classical scholar Edward Frenkel (1968-), Russian-American mathematician Ernst Fränkel (physician) (1844–1921), German gynaecologist Ernst Fraenkel (linguist) (1881–1957), German linguist Ernst Fraenkel (political scientist) (1898–1975), German political scientist Hermann Fränkel (1888-1977), German-American classicist Heinz Fraenkel-Conrat (1910–1999), biochemist Iwan Fränkel (born 1941), Surinamese footballer Jonas Fränkel (1773–1846), German banker and philanthropist Josef Fraenkel (1903–1987), Austro-Hungarian (later British) journalist and author Knut Frænkel (1870–1897), Swedish engineer and arctic explorer Leó Frankel (Léo Fränkel) (1844–1896), Hungarian communist revolutionary 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