Ajinomoto Field Nishigaoka (味の素フィールド西が丘), originally called Nishigaoka Soccer Stadium (国立西が丘サッカー場, Nishigaoka National Soccer Stadium), is a football stadium in Kita, Tokyo.

It was renamed on 1 May 2012 after the naming rights by Ajinomoto expired after five years.

The Ajinomoto Field Nishigaoka currently has a capacity of 7,137 [3] and was the home stadium of former J3 League club FC Tokyo U-23, until its dissolution.

Also, some matches hosted at the stadium involve Japanese youth national teams and Tokyo Verdy's matches.

Access to the stadium is from Motohasunuma Station on the Toei Mita Line.