| Tamagawadai Park | |
| Photo Width: | 250 |
| Location: | 1-63-1 Den-en-chōfu, Ōta Ward, Tokyo, Japan |
| Publictransit: | Tamagawa Station |
| Coords: | 35.59°N 139.6658°W |
is a public park located in Ota ward, Tokyo, Japan.[1] It contains two ancient kofun burial mounds.[2] It contains a number of cherry blossom trees .It is also well known for its large number of hydrangea trees.