Stanisław Trepczyński (7 April 1924 – 20 June 2002) was a Polish diplomat, who served as the 27th president of the United Nations General Assembly.
Trepczyński was born in Łódź, Poland, on 7 April 1924. His father was a lawyer. He was a graduate of Lodz University and received a master's degree in economics.
Trepczyński joined the Lodz Committee of the Polish Workers Party (later the Polish United Worker's Party) in 1946. In 1951, he became the secretary of the Polish peace committee. He was appointed deputy minister of foreign affairs in 1971. From 1972 to 1973 he served as the 27th president of the United Nations General Assembly.
Trepczyński was married twice and had three sons.