O-40 Championship

Statistics
First champion	Sanshiro Takagi
Most reigns	Toru Owashi (2 reigns)
Longest reign	Toru Owashi; (662 days)
Shortest reign	Sanshiro Takagi; (76 days)
Oldest champion	Gorgeous Matsuno; (58 years, 164 days)
Youngest champion	Daisuke Sasaki; (40 years, 0 days)
Heaviest champion	Toru Owashi; (110 kg (240 lb))
Lightest champion	Gorgeous Matsuno and Makoto Oishi; (75 kg (165 lb))

O-40 Championship
O-40 Championship
	The O-40 Championship belt
Details
Promotion	CyberFight
Brand	DDT Pro-Wrestling
Date established	July 15, 2019
Current champion	Daisuke Sasaki
Date won	November 22, 2025
First champion
Statistics
First champion	Sanshiro Takagi
Most reigns	Toru Owashi (2 reigns)
Longest reign	Toru Owashi; (662 days)
Shortest reign	Sanshiro Takagi; (76 days)
Oldest champion	Gorgeous Matsuno; (58 years, 164 days)
Youngest champion	Daisuke Sasaki; (40 years, 0 days)
Heaviest champion	Toru Owashi; (110 kg (240 lb))
Lightest champion	Gorgeous Matsuno and Makoto Oishi; (75 kg (165 lb))

The O-40 Championship (Japanese: O-40王座, Hepburn: Ōbā Fōtī Ōza) is a professional wrestling championship in the Japanese promotion DDT Pro-Wrestling. The title was established in 2019 by Super Sasadango Machine in order to provide a title for wrestlers over 40 years old. The current champion is Daisuke Sasaki, who is in his first reign.