The One Pro Wrestling (1PW) World Heavyweight Championship was a professional wrestling world championship created and promoted by the British promotion One Pro Wrestling.

The title was established in 2006 and was the highest ranked men's championship in the company.

As the company's closure on 29 September 2023, were eight reigns between seven champions.

Martin Stone's reign is the longest at 681 days.

Ulf Herman is the oldest champion when he won it at 40 years old, while Sterling James Keenan is the youngest champion at 23 years old.