Richard Cunningham Patterson Jr.

Richard Cunningham Patterson Jr. (1886–1966) was an American diplomat.

Patterson was the U.S. ambassador to Yugoslavia (1944–1948), Guatemala (1948–1951), and U.S. Minister to Switzerland (1951–53). While ambassador to Guatemala, he popularized the term duck test.

Amid charges in Guatemala that Patterson was intervening in Guatemala's internal affairs, and rumors that Patterson's life was in danger, Patterson hurriedly departed for the United States on March 28, 1950. His mission in Guatemala was terminated on April 24, 1951, when a new ambassador, Rudolf E. Schoenfeld, presented his credentials.

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