Horwitz is a surname, current among Ashkenazi Jews. It is derived from the Yiddish pronunciation of the name of the town of Hořovice in Bohemia. For detailed historical background see the Horowitz page .
Notable people with the surname include:
- Alan Horwitz (born 1944), American businessman
- Arnold Horwitz (later Arnold Horween), American football player
- Bella Horwitz, 18th century Bohemian writer
- Bernhard Horwitz (1807-1885), German chess player
- Brian Horwitz (born 1982), American baseball player
- Jacob H. Horwitz (1892–1992), American businessman, philanthropist and fashion innovator
- Jerome Lester Horwitz (1903–1952), American actor Curly Howard, of the Three Stooges
- David Horwitz (born 1994), Australian rugby player
- Dominique Horwitz (born 1957), French actor and singer
- Howard Horwitz (1918 – 1976), American television producer
- Jay Horwitz (born 1945), American baseball executive
- Kai Horwitz (born 1998), Chilean alpine skier
- Maksymilian Horwitz, aka Henryk Walecki (1877–1937), Polish communist
- Morton Horwitz (born 1938), legal historian and professor
- Moses Harry Horwitz, American actor a.k.a. Moe Howard, of the Three Stooges
- Phineas Jonathan Horwitz (1822–1904), former Surgeon General of the United States Navy
- Ralph Horwitz (later Ralph Horween), American football player
- Ronald Horwitz (born 1934), known as Ronald Harwood, South African-born British author, playwright, and screenwriter
- Samuel Horwitz, American actor a.k.a. Shemp Howard, of the Three Stooges
- Spencer Horwitz (born 1997), American baseball player
- Steven Horwitz (born 1964), American economist
- Susan B. Horwitz (1955–2014), American computer scientist
- Susan Band Horwitz, American biochemist
- Tony Horwitz (1958–2019), American journalist
- William Horwitz (1918–2006), American analytical chemist
- Yosef Yozel Horwitz, rabbi
See also
- Horwitz Publications, an Australian publisher
- Louisa Gross Horwitz Prize