Lorenzo Sumulong Sr.[b] (September 5, 1905 – October 21, 1997) was a Filipino lawyer and politician who served in the Philippine Senate for four decades, and as a delegate of his country to the United Nations.

He was noted for having engaged in a debate with Nikita Khrushchev at the United Nations General Assembly that (allegedly) provoked the Soviet Union Premier to bang his shoe on a desk.

[3] Sumulong also served as chairman of the Senate Foreign Relations committee, and in that capacity, he led a Philippine delegation to the 902nd Plenary Meeting of the United Nations General Assembly in 1960.

During that meeting, Sumulong took the floor and delivered the following remarks challenging the Soviet Union to allow the people of Eastern Europe the free exercise of their civil and political rights.

It is our view that the declaration proposed by the Soviet Union should cover the inalienable right to independence not only of the peoples and territories which yet remain under the rule of Western colonial Powers, but also of the peoples of Eastern Europe and elsewhere which have been deprived of the free exercise of their civil and political rights and which have been swallowed up, so to speak, by the Soviet Union.

[7] Sumulong's service in Congress ended in 1972, with the abolition of the Philippine Senate upon the declaration of martial law by President Ferdinand Marcos.