Saikouisen Nihon Pro Mahjong
 | |
| Country | Japan |
|---|---|
| Inception | 1976 |
| Leader | Mr. Kiyoshi Niitsu, Representative |
| Members | 547 |
The Saikouisen Nihon Pro Mahjong association (最高位戦日本プロ麻雀協会 Saikouisen nihon puro maajan kyoukai, informally called "Saikouisen") is a professional organization of competitive mahjong players.
Membership
As of June 2020, Saikouisen currently has 547 members.