Breithaupt is the surname of: August Breithaupt, German mineralogist Don Breithaupt, Canadian musician Jim Breithaupt, Canadian politician Louis Breithaupt, German-born tanner and politician in Ontario, Canada Louis Jacob Breithaupt, manufacturer and politician in Ontario, Canada Louis Orville Breithaupt, politician and Lieutenant Governor of Ontario Scot Breithaupt, American entrepreneurThe name may also refer to: Breithaupt v. Wikipedia