Udalschalk, Abbot of St Ulrich's and St Afra's Abbey, also known in sources as Uodalscalc, Uodalschalus, Uodalscalcus, Odalschalchus and Udalscalcus was a German Benedictine historian, writer, composer and copyist, active in Augsburg, Konstanz and Rome. He was a minor literary opponent of the Imperial party during the Investiture Controversy.
- Occupation
- religious person, musicologist, writer, monk
- Position held
- abbot
- Born
- 1050
- Died
- 1151, 1150
