Louise Fréchette OC (born July 16, 1946) is a Canadian diplomat and public servant who served for eight years as United Nations Deputy Secretary-General.

While unsuccessful, she impressed Ottawa with her efforts and was named Canada's ambassador to the United Nations in 1992.

In 1995, Fréchette left the foreign service to become assistant deputy minister of finance in Ottawa.

While at the United Nations, Fréchette – working with her U.S. counterpart Madeleine K. Albright, among others – was pivotal in devising a peacekeeping operation for Haiti with the return from exile of President Jean-Bertrand Aristide in 1994.

[1] In 2005, after being criticized by former U.S. Federal Reserve Chairman Paul Volcker for failed management of the Iraq Oil-for-Food Program, Fréchette announced her resignation.