Glenn Wilson Brier (April 26, 1913 - January 2, 1998) was an American statistician, weather forecaster and academic.
Brier was born in Woodbridge, Virginia, on April 26, 1913, and died on January 2, 1998. He married Josephine Hartz and had three children: Richard Paul, Katherine and David.
Brier earned a Master of Arts degree in statistics from George Washington University with the thesis titled "The Discriminant Function".
Brier worked for the Office of Meteorological Research of the U.S. Weather Bureau, at the U.S. Department of Commerce, from 1939 up to the 1980s.
Brier is best known for creating a scoring rule to measure the accuracy of forecasts, which is known as a Brier score. Because of his work, the score and Brier himself are widely cited by academics related not only to weather-forecasting, but by researchers in several other fields of forecasting, decision science, and various disciplines.