Notker the Stammerer (Latin: Notcerus Balbulus; c.
840 – 6 April 912 AD), also called Notker I, Notker the Poet or Notker of Saint Gall, was a musician, author, poet, and Benedictine monk at the Abbey of Saint Gall, now in Switzerland.
He is commonly accepted to be the "Monk of Saint Gall" (Monachus Sangallensis) who wrote Gesta Karoli (the "deeds of Charlemagne").