John Livingston Weinberg (January 25, 1925 – August 7, 2006) was an American banker and businessperson, running Goldman Sachs from 1976 to 1990.

in economics from Princeton University in 1948 after completing a senior thesis titled "Status and Functions of Corporate Directors.

He joined Goldman Sachs in 1950 and rose to become a senior investment banker and chairman of the management committee, running the firm from 1976 to 1990.

He was a director of the Seagram drinks group, newspaper publisher Knight-Ridder, and the chemical firm Du Pont.

[citation needed] John L. Weinberg died at the age of 81 due to complications from a fall.