is a metropolitan park (, toritsu kà Âen) located across Nerima and Itabashi wards in Tokyo, Japan. The park opened on 1 April 1957.
Jà Âhoku-Chà «à  Park has two main baseball fields and two smaller fields (for softball and junior use). It also has an athletics stadium (dirt surface) and nine tennis courts (four hard courts, four clay courts, and one artificial grass court). A gymnasium, , is located adjacent to the park.
The park contains over 3,000 trees, including Chinese parasol tree, ginkgo, Japanese zelkova, cherry (someiyoshino), sawara cypress, sasanqua, azalea, and camellia.
Each tree is assigned an identification number displayed on coloured labels attached to the trunk. This system is used by park staff for monitoring and maintenance. A similar system is used in Hikarigaoka Park.
Tama Zoological Park cultivates Eucalyptus in several locations as food for its koalas, and Jà Âhoku-Chà «à  Park is one of these sites, with nine species grown in the park.
The park contains two archaeological sites: the Kurihara Site and the Moro Site, both of which date to the Japanese Paleolithic period.
A retention basin has been constructed within the park to manage excess water from the Shakujii River during periods of heavy rainfall.
Land acquisition for the project began in the mid-2010s. Construction of the first phase started in January 2018 and was completed in June 2025. The second phase involves the construction of additional caissons adjacent to those built in the first phase, with completion scheduled for 2030.