List of ambassadors of the United States to Antigua and Barbuda

Ambassador of the United States to Antigua and Barbuda
Seal of the United States Department of State
Flag of a United States ambassador
Incumbent
Karin B. Sullivan
Chargé d'affaires
since January 20, 2025
NominatorThe president of the United States
AppointerThe president
with Senate advice and consent
Inaugural holderPaul Byrnes
as Chargé d'Affaires
FormationNovember 1, 1981
WebsiteAmbassador to Antigua and Barbuda

The United States ambassador to Antigua and Barbuda is the official representative of the government of the United States to the government of Antigua and Barbuda. The title of the ambassador is United States Ambassador to Barbados and the Eastern Caribbean and is concurrently the ambassador to Barbados, Dominica, Grenada, St. Kitts and Nevis, St. Lucia, and St. Vincent and the Grenadines, while resident in Bridgetown, Barbados. The official title of the ambassador is Ambassador Extraordinary and Plenipotentiary of the United States of America to Barbados and the Eastern Caribbean.

The United States established diplomatic relations with Antigua and Barbuda on November 1, 1981, when the Consulate General at St. John's was raised to embassy status. Embassy St. John's closed on June 30, 1994. Since that time, all diplomatic functions have been handled out of the U.S. Embassy at Bridgetown, Barbados.