Osaka Pro Wrestling Championship

The Osaka Pro Wrestling Championship (大阪プロレス王座) is the top singles title in the Japanese professional wrestling promotion Osaka Pro Wrestling. The title was established in 2000 when Super Delfin defeated Dick Togo to be crowned the inaugural champion.

, there have been a total of 20 recognized champions, who have had a combined 35 official reigns and there have been four vacancies. The current champion is Quiet Storm who is in his second reign.

Names
On January 18, 2019, the title was renamed Osaka Openweight Championship (大阪無差別級王座).

During the COVID-19 pandemic in Japan, Osaka Pro Wrestling (OPW) remained fairly inactive, having held only one event in 2020 and one in 2021. On July 30, 2021, Zeus was appointed as the owner and president of OPW. On August 26, he received a share transfer from former owner Yuji Sakagami. Following the acquisition, OPW underwent a "relaunch" in early 2022. On May 1, a new belt was unveiled and Zeus defeated Kazuaki Mihara to win the title, which was now once again referred to as the Osaka Pro Wrestling Championship.

Combined reigns
As of July 29, 2024.