| AAA | American Arbitration Association |
| ACJUSER | Advisory Council on Japan–U.S. Economic Relations |
| ACSA | Acquisition and Cross-Servicing Agreement |
| ADR | Alternative Dispute Resolution |
| AJS | America–Japan Society |
| ANZUS | Australia, New Zealand, United States of America |
| APEC | Asia–Pacific Economic Cooperation |
| ASDF | Air Self-Defense Force |
| ASEAN | Association of Southeast Asian Nations |
| CART | Common Agenda Roundtable |
| CULCON | U.S.–Japan Conference on Cultural and Educational Interchange |
| DIC | Defense Industry Commission |
| EAEC | East Asia Economic Caucus |
| EAEG | East Asia Economic Grouping |
| EIBUS | Export–Import Bank of the United States |
| EROA | Economic Rehabilitation in Occupied Area |
| ESB | Economic Stabilization Board |
| FSX | Fighter Support X |
| GARIOA | Government Aid and Relief in Occupied Area |
| GATT | General Agreement on Tariffs and Trade |
| GHQ | General Headquarters |
| GS | Government Section |
| IAEA | International Atomic Energy Agency |
| IFSEC | Industry Forum for Security Cooperation |
| IMF | International Monetary Fund |
| IMTFE | International Military Tribunal for the Far East |
| JAIF | Japan Atomic Industrial Forum |
| JAS | Japan America Society |
| JASC | Japan-America Student Conference |
| JBF | Japan Business Federation |
| JCAA | Japan Commercial Arbitration Association |
| JET | Japan Exchange and Teaching |
| JPC | Japan Productivity Center |
| JSDF | Japanese Self-Defense Force |
| JSP | Japan Socialist Party |
| JUSBC | Japan–U.S. Business Council |
| JUSWPC | Japan–U.S. Wise Persons Committee |
| Keidanren | Japan Federation of Economic Organizations |
| LDP | Liberal Democratic Party |
| MITI | Ministry of International Trade and Industry |
| MSA | Mutual Security Agreement |
| MSDF | Maritime Self-Defense Force |
| NAJAS | National Association of Japan-America Societies |
| NATO | North Atlantic Treaty Organization |
| NDC | National Defense Council |
| NDIA | National Defense Industrial Association |
| NGO | non-governmental organization |
| NPR | National Police Reserve |
| P-3 | Common Agenda Public Private Partnership |
| PRC | People's Republic of China |
| RFB | Reconstruction Finance Bank |
| ROC | Republic of China |
| SCAP | Supreme Commander for the Allied Powers |
| SCAPIN | Supreme Commander for the Allied Powers Instruction Note |
| SCC | Japan–U.S. Security Consultative Committee |
| SEATO | Southeast Asia Treaty Organization |
| SII | Structural Impediments Initiative |
| SOFA | Japan–U.S. Status-of-Forces Agreement |
| USJBC | U.S.–Japan Business Council |
| USTR | United States Trade Representative |
| YMCA | Young Men's Christian Association |