Bulgaria and the United States established diplomatic relations on 19 September 1903, when Washington's first envoy, John Jackson, presented his diplomatic credentials to King Ferdinand, the grandfather of Bulgaria's current prime minister.
Bugarska i Sjedinjene Države uspostavili su diplomatske odnose 19. septembra 1903, kada je prvi izaslanik Vašingtona, Džon Džekson, predao svoje akreditive kralju Ferdinandu, dedi sadašnjeg premijera Bugarske.