Guillaume de la Sudrie (la Sudré) (died 18 April 1373) was a French Dominican and Cardinal, born in Laguenne, Corrèze. He started to serve as bishop of Marseille in the beginning of 1361.
He was made cardinal on 18 September 1366 by Pope Urban V and was Bishop of Ostia from 1367 to 1373.
He died in Avignon and was buried in the .