Witkowski started out in the army, becoming a cavalry officer and meeting Louis Vierne during that time. He later studied with Vincent d'Indy at the Schola Cantorum, and, after settling in Lyon, was appointed director of the conservatory there in 1924.
His son was the conductor and cellist Jean Witkowski.
The list of Georges Martin Witkowski's compositions includes two symphonies and three operas among other works.
^Jean Witkowski succeeded Georges Martin as director of the Conservatory, is mentioned by Poulenc and Messiaen in their correspondence, and was the dedicatee of Robert Casadesus' cello sonata op. 22 of 1935-6 - see "Description of Casadesus Cello Sonata" (in French). Retrieved 2009-01-07.