Aloysius Martin "Lou" Thesz (born Lajos Tiza April 24, 1916 – April 28, 2002) was an American professional wrestler and six-time world champion, most notably holding the NWA World Heavyweight Championship three times. Combined, he held the NWA Championship for 10 years, three months and nine days (3,749 days total), longer than anyone else in history. Among his many accomplishments, he is credited with inventing a number of professional wrestling techniques such as the belly to back waistlock suplex (later known as the German suplex due to its association with Karl Gotch), the Lou Thesz press, STF and the original powerbomb. He is generally considered to be one of the greatest professional wrestlers of all time. On April 2, 2016 Thesz was posthumously inducted into the WWE Hall of Fame as an inaugural member of the "Legacy" wing.
- American Wrestling Association World Heavyweight Championship (Boston version)
- American Wrestling Association World Heavyweight Championship (Ohio version)
- TWWA World Heavyweight Championship
- NWA International Heavyweight Championship
- Midwest Wrestling Association (Ohio) World Heavyweight Championship
- Montreal Athletic Commission World Heavyweight Championship
- NWA World Heavyweight Championship
- NWA Pacific Coast Tag Team Championship (Vancouver version)
- NWA Southern Junior Heavyweight Championship (2 times)
- NWA Southern Tag Team Championship (Mid-America version)
- National Wrestling Association World Heavyweight Championship
- Southwest Sports, Inc. Texas Heavyweight Championship
- Universal Wrestling Association World Heavyweight Championship
- Worldwide Wrestling Associates World Heavyweight Championship
- Worldwide Wrestling Associates International Television Tag Team Championship
- Original World Heavyweight Championship
- World Heavyweight Championship (Los Angeles)