Mizuno Open

Gateway to The Open Mizuno Open
Tournament information
LocationKasaoka, Okayama, Japan
Established1971
Course(s)JFE Setonaikai Golf Club
Par72
Length7,461 yards (6,822 m)
Tour(s)Japan Golf Tour
FormatStroke play
Prize fund¥100,000,000
Month playedMay/June
Tournament record score
Aggregate266 Norio Suzuki (1980)
To par−20 as above
Current champion
Mikiya Akutsu
Location map
Setonaikai Golf Club
Location in Japan
Setonaikai Golf Club
Location in the Okayama Prefecture

The Mizuno Open (ミズノオープン, Mizuno ōpun) is a professional golf tournament played in Japan. Founded in 1971, it has been a Japan Golf Tour event since 1979. Since 1998, the event has been prefixed Gateway to The Open (全英への道, Zen'ei eno michi), with the top finishers gaining exemptions into The Open Championship.

The Mizuno Open has been held at several courses, most frequently at JFE Setonaikai Golf Club in Kasaoka, Okayama, which has hosted all but six renewals since 1998. The purse for the 2024 event was ¥100,000,000, with ¥20,000,000 going to the winner.