Leonard Miller

• Leonard W. Miller, American motor racing pioneer
• Leonard T. Miller, his son, American racing driver, pilot and author
• Leonard J. Miller, politician in Newfoundland, Canada
• Leonard Miller (basketball), Canadian basketball player
• Leonard M. Miller, former president and CEO of Lennar
• Leonard Miller, owner of the British comic book publisher L. [Miller & Son, Ltd.]
• Miller [School of Medicine|Leonard M. Miller School of Medicine] at the University of Miami