George Walter Landau (March 4, 1920 – October 9, 2018) was an American diplomat who served as the United States Ambassador to Paraguay, Chile, and Venezuela.

[1] Landau was born March 4, 1920, in Vienna, Austria, to a Jewish family, and became a naturalized citizen of the United States in 1943.

He left active duty status as a captain in Military Intelligence in 1947 but remained in the United States Army Reserve until 1975, when he retired with the rank of colonel.

Landau served in private business as an executive of a shipping company from 1947 to 1955, and as general manager of an American automobile distributor in Colombia from 1955 to 1957.

[2] In 1957, he began his career in the United States Foreign Service as commercial attache and Chief of the Economic Section in Montevideo, where he also served as member of the U.S. Delegation that created the "Alliance for Progress" in Punta del Este in 1961.

[2] Landau received the State Department's Superior Honor Award for his work in the negotiation of the 1970 Spanish Base Agreement.