Who is the us representative to NATO?

As of my last knowledge update in October 2023, the U.S. representative to NATO is the U.S. Ambassador to NATO, which is a position filled by a senior diplomat. The ambassador serves as the primary liaison between the U.S. government and NATO, representing U.S. interests within the alliance. The current ambassador is Julianne Smith, who was appointed to the role in 2021. For the most accurate and up-to-date information, it is advisable to check the latest sources.