---
title: "Japan Blocs & Alliances | Model Diplomat"
description: "Every diplomatic bloc and alliance Japan belongs to — and the allies, rivals, and neighbors that shape its votes."
url: "https://modeldiplomat.com/country/japan/blocs-alliances"
---

[New](https://modeldiplomat.com/)

Updated Jun 10, 2026

# Which blocs and alliances does Japan belong to?

Every diplomatic bloc and alliance Japan belongs to — and the allies, rivals, and neighbors that shape its votes.

## Bloc memberships

[G7](https://modeldiplomat.com/country/bloc/g7)

[7](https://modeldiplomat.com/country/bloc/g7)

[Industrialised democracies that coordinate global economic and security policy.](https://modeldiplomat.com/country/bloc/g7)

[+2](https://modeldiplomat.com/country/bloc/g7)

[G20](https://modeldiplomat.com/country/bloc/g20)

[19](https://modeldiplomat.com/country/bloc/g20)

[Premier forum for international economic cooperation, \~85% of global GDP.](https://modeldiplomat.com/country/bloc/g20)

[+14](https://modeldiplomat.com/country/bloc/g20)

[OECD](https://modeldiplomat.com/country/bloc/oecd)

[38](https://modeldiplomat.com/country/bloc/oecd)

[Organisation for Economic Co-operation and Development — 38 high-income democracies.](https://modeldiplomat.com/country/bloc/oecd)

[+33](https://modeldiplomat.com/country/bloc/oecd)

## Allies, rivals & neighbours

Allies

[United States](https://modeldiplomat.com/country/usa)[Australia](https://modeldiplomat.com/country/aus)[India](https://modeldiplomat.com/country/ind)[United Kingdom](https://modeldiplomat.com/country/gbr)[France](https://modeldiplomat.com/country/fra)

Rivals

[China](https://modeldiplomat.com/country/chn)[North Korea](https://modeldiplomat.com/country/prk)[Russia](https://modeldiplomat.com/country/rus)

## Organisation memberships

Memberships

Organizations

6

UNUNmember · 1956

G7G7member

G20G20member

AAmember · 1989

QQmember

OOmember · 1964

[Back to Japan profile](https://modeldiplomat.com/country/japan)

Explore more on Japan

[Treaties](https://modeldiplomat.com/country/japan/treaties)[Background](https://modeldiplomat.com/country/japan/background)[Politics & democracy](https://modeldiplomat.com/politics/japan)