The Shigeo Nagashima Invitational Sega Sammy Cup (長嶋茂雄Invitational セガサミーカップゴルフトーナメント, Nagashima shigeo inviteishonaru sega samī kappu gorufu tōnamento) was a professional golf tournament on the Japan Golf Tour.

It was played annually at The North Country Golf Club near Chitose, Hokkaido from 2005 to 2024.

Shunsuke Sonoda set the original tournament record in 2013, shooting 268 (−20) a score subsequently equalled by Ryo Ishikawa in 2019.

[2] Following the announcement of the 2025 Japan Golf Tour schedule, it was confirmed that the tournament would not return in 2025.

This article on a golf tournament is a stub.