William Paulus is an American former competition swimmer and world record-holder.

Paulus grew up in Fort Worth, Texas, and went to college at the University of Texas on a swimming scholarship in the early 1980s.

His orthodontic residency was at Saint Louis University Medical Center.

Paulus graduated with honors in June 1994 and immediately went into practice with his father, Peter Paulus, who has since retired.

He is a Diplomate and board certified member of the American Association of Orthodontists.