| Sanko Grand Summer Championship | |
| Location: | Takasaki, Gunma, Japan |
| Establishment: | 1990 |
| Course: | Sanko 72 Country Club |
| Par: | 72 |
| Yardage: | 7066yd |
| Month Played: | August |
| Tour: | Japan Golf Tour |
| Format: | Stroke play |
| Final Year: | 1998 |
| Aggregate: | 267 Frankie Miñoza (1995) |
| To-Par: | −21 as above |
| Final Champion: |  Shingo Katayama |
| Map: | Japan#Japan Gunma Prefecture |
| Map Label: | Sanko 72 CC |
| Map Relief: | yes |
| Map Size: | 200 |
| Coordinates: | 36.282°N 138.993°W |
The Sanko Grand Summer Championship was a professional golf tournament that was held in Japan during the 1990s. It was an event on the Japan Golf Tour from 1995 to 1998. It was played in August at the Sanko 72 Country Club in Takasaki, Gunma Prefecture.
| Year | Winner | Score | To par | Margin of victory | Runner(s)-up | ||
|---|---|---|---|---|---|---|---|
| 274 | −14 | Playoff | |||||
| 271 | −17 | 1 stroke | |||||
| 272 | −16 | 4 strokes | |||||
| 267 | −21 | 4 strokes | |||||
| 1994 | [1] | ||||||
| 1993 | [2] | ||||||
| 1992 | |||||||
| 1991 | [3] | ||||||
| 1990 | [4] |