互不侵犯条约是两个以上国家之间为了避免军事武装冲突而签订的国际条约。

• 苏立互不侵犯条约，1926年9月
• 苏芬互不侵犯条约，1932年1月
• 苏波互不侵犯条约，1932年7月
• 德波互不侵犯条约，1934年1月
• 法苏互助条约，1935年5月
• 中苏互不侵犯条约，1937年8月
• 苏德互不侵犯条约，1939年8月。9月第二次世界大战爆发
• 日苏中立条约，1941年4月

A non-aggression pact or neutrality pact is a national treaty between two or more states/countries where the signatories promise not to engage in military action against each other.

Sometimes non-aggression pacts and neutrality pacts have been considered different. In that case non-aggression pact is considered to include the promise not to attack the other signatories, while a neutrality pact includes a promise to avoid any support against the other signatories. In 19th century neutrality pacts have often been used to give permission to attack another state.