Horwitz

• Arnold Horwitz, American football player for Harvard Crimson and in the NFL
• Bernhard Horwitz, German chess player
• Brian Horwitz, American major league baseball outfielder
• Jacob H. Horwitz, American businessman, philanthropist and fashion innovator.
• Jerome Lester Horwitz, Curly Howard, of the Three Stooges
• David Horwitz, Australian rugby union player
• Kai Horwitz, Chilean Olympic alpine skier
• Maksymilian Horwitz, aka Henryk Walecki, leader and theoretician of the Polish communist movement
• Morton Horwitz, legal historian and law professor
• Moses Harry Horwitz, a.k.a. Moe Howard, of the Three Stooges
• Phineas Jonathan Horwitz, former Surgeon General of the United States Navy
• Ralph Horwitz, American football player for Harvard Crimson and in the NFL
• Ronald Horwitz, known as Ronald Harwood
• Samuel Horwitz, a.k.a. Shemp Howard of the Three Stooges
• Steven Horwitz, American economist
• Susan B. Horwitz 1955 – 2014), American computer scientist
• Susan Band Horwitz, American biochemist
• Tony Horwitz, American journalist
• William Horwitz, analytical chemist, formerly at the US Food and Drug Administration
• Yosef Yozel Horwitz, rabbi