Swaziland maintains diplomatic relations with the Republic of China (Taiwan) instead of with the People's Republic of China.

Swaziland is a member of the United Nations, the African Union, the Common Market for Eastern and Southern Africa, and the Southern African Development Community. Eleven accredited ambassadors or honorary consuls are resident in the country.

In the past, Swaziland has asked South Africa to open negotiations on reincorporating some nearby South African territories that are populated by ethnic Swazis or that were long ago part of the Swazi kingdom.

Swazi embassies and consulates abroad

• Kingdom of Belgium; in Brussels, Belgium
• Canada; in Ottawa, Canada
• Republic of China; in Tai'pei, Taiwan
• Kingdom of Denmark; in Copenhagen, Denmark
• Republic of Kenya; in Nairobi, Kenya
• Federation of Malaysia; in Kuala Lumpur, Malaysia
• Republic of Mozambique; in Maputo, Mozambique
• Union of South Africa; in Pretoria, South Africa
• United Kingdom of Great Britain and Northern Ireland; in London, the United Kingdom
• United Nations; in New York City, the United States
• United States of America; in Washington, the United States

Foreign embassies and consulates in Swaziland

• Republic of China; in Mbabane, Swaziland
• Republic of Mozambique; in Mbabane, Swaziland
• Union of South Africa; in Mbabane, Swaziland
• United Kingdom of Great Britain and Northern Ireland; in Mbabane, Swaziland
• United States of America; in Mbabane, Swaziland