National United Methodist Church

The School of International Service (SIS) is American University's school of advanced international study, covering areas such as international politics, international communication, international development, international economics, peace and conflict resolution, international law and human rights, global environmental politics, and U.S. foreign policy. The School of International Service was established in 1957 and has an alumni network of over 20,000. SIS enrolls more than 3,000 students from over 150 countries. The school makes extensive use of the academic and governmental resources offered by its location in Washington, D.C. The School of International Service consistently ranks highly among international relations programs. SIS is a member of the Association of Professional Schools of International Affairs. SIS also has partnerships with schools such as the Balsillie School of International Affairs.

Camp Leach, formerly known as the American University Experimental Station and Camp American University, was a World War I era United States Army camp built by the Corps of Engineers on American University property in Washington, D.C. It was named in honor of Colonel Smith S. Leach, Corps of Engineers. The camp was established in 1917 for the organization of engineer units and subsequently used by the Chemical Warfare Service. Abandoned in January 1919, it was ordered salvaged.

The Nuclear Studies Institute was founded in 1995 at American University in Washington, D.C. as a component of the American University College of Arts and Sciences. The purpose of the Institute is to educate American University graduate and undergraduate students, as well as the general public, about the key points of nuclear history, nuclear culture in the United States, and the threats still posed by nuclear weapons in the modern world.Under the direction of Dr. Peter Kuznick, the Institute runs during the University summer session, offering on-campus classes dealing with American nuclear culture and also a two-week study trip to Japan. In Japan, American University students, along with other American and Canadian students, travel and study alongside Japanese students, mainly from Ritsumeikan University as well as other universities in Japan and the region. The study tours the cities of Kyoto, Hiroshima, and Nagasaki, where the students hear lectures, visit landmarks, and attend the memorial ceremonies for the atomic bombings of Hiroshima and Nagasaki, as well as their respective peace museums, in an effort to foster closer ties on both sides of the Pacific. The 2010 Nuclear Studies Institute trip to Japan was covered by NHK, Japan's national broadcasting corporation, and broadcast on Japanese television and featured on the NHK program “Japan Seven Days.”The Institute provides participants to hear many stories of the hibakusha (被爆者, literally “explosion-affected people"), including those of Koko Kondo, peace activist, American University graduate, and daughter of Reverend Kiyoshi Tanimoto, who figures heavily in John Hersey’s Hiroshima. Tadatoshi Akiba, mayor of Hiroshima and president of the Mayors for Peace organization, also regularly meets with the participants during their study in Hiroshima. The Institute participates in the Nuclear Education Project; a worldwide effort to improve access to teaching and learning materials regarding the history of the nuclear arms race and the ongoing movement to curb the proliferation of nuclear weapons. The Nuclear Education Project was founded in 2004 by Dr. Peter Kuznick, Mayor Tadatoshi Akiba, Dr. John W. Dower of MIT and Dr. Mark Selden.

The College of Arts and Sciences is the oldest and largest academic unit at American University in terms of student enrollment and faculty lines. It was established in 1893. It offers more than 50 masters, doctoral, and certificate programs. The College of Arts and Sciences faculty includes nationally and internationally noted artists, scholars, and teachers, as well as students from all 50 states and 150 countries. It also administers the Katzen Arts Center and the Greenberg Theatre.

The McKinley Building was the second building constructed on the American University campus, built in 1907, in northwest Washington, D.C. McKinley was designed by Henry Ives Cobb, well known for his architectural work in Chicago. The McKinley Building became the new home for the School of Communication after renovations were completed in 2014.

The Navy Bomb Disposal School , was a World War II era U.S. naval training installation built on American University property in Washington, D.C.

The American University (AU or American) is a private federally chartered research university in Washington, D.C. Its main campus spans 90 acres (36 ha) on Ward Circle, mostly in the Spring Valley neighborhood of Northwest D.C. AU was chartered by an Act of Congress in 1893 at the urging of Methodist bishop John Fletcher Hurst, who sought to create an institution that would promote public service, internationalism, and pragmatic idealism. AU broke ground in 1902, opened as a graduate education institution in 1914, and admitted its first undergraduates in 1925. Although affiliated with the United Methodist Church, religious affiliation is not a criterion for admission. American University has eight schools and colleges: the School of International Service, College of Arts and Sciences, Kogod School of Business, School of Communication, Professional Studies and Executive Education, School of Public Affairs, School of Education, and the Washington College of Law (WCL). It has over 160 programs, including 71 bachelor's degrees, 87 master's degrees, and 10 doctoral degrees, as well as JD, LLM, and SJD programs. AU's student body numbers over 13,000 and represents all 50 U.S. states and 141 countries; around a fifth of students are international. American University is among the top three feeder schools to the Department of State. It is classified among "R2: Doctoral Universities – High research activity".The university owns National Public Radio's flagship capital affiliate, WAMU, which has been a source of nationally and internationally distributed programming such as The Diane Rehm Show and the more recent 1A, styled as "the 1A", as in "the 1st Amendment".

The Antiguan Barbudan ambassador in Washington, D. C. is the official representative of the Government in St. John's, Antigua and Barbuda to the Government of the United States and Permanent Representative to the Organization of American States.

The Saint Lucianese ambassador in Washington, D.C. is the official representative of the Government in Castries to the Government of the United States.

The Dominican ambassador in Washington, D. C. is the official representative of the Government in Roseau to the Government of the United States.

The Vincentian ambassador in Washington, D. C. is the official representative of the Government in the Kingstown to the Government of the United States.

The Kittitian and Nevisian ambassador in Washington, D. C. is the official representative of the Government in Basseterre to the Government of the United States.