Harry Walter Shlaudeman (May 17, 1926 – December 5, 2018) was an American diplomat, who served successively as Ambassador to Venezuela, Peru, Argentina, Brazil, and Nicaragua.

Ford next nominated Shlaudeman as Assistant Secretary of State for Inter-American Affairs, and he held this office from July 22, 1976, until March 14, 1977.

President Jimmy Carter nominated him as United States Ambassador to Peru, holding this post from June 28, 1977, until October 20, 1980.

Carter then named him United States Ambassador to Argentina, holding this post from November 4, 1980, until August 26, 1983, during the Falklands War.

President George H. W. Bush then nominated him as United States Ambassador to Nicaragua and he served in this post from June 21, 1990, until March 14, 1992.