Henry XV, Duke of Bavaria, as duke of Lower Bavaria also called Henry III, (28 August 1312 – 18 June 1333 in Natternberg near Deggendorf).
Henry was a son of Otto III, Duke of Bavaria and Agnes Glowgow (born 1293-96 – died 25 December 1361).
He was born in the year of his father's death and first under tutelage of Louis IV, Holy Roman Emperor.
Henry XV ruled then parts of Lower Bavaria with Deggendorf as capital after a conflict with his cousins and co-regents Henry XIV and Otto IV.
She survived him by ten years and went on to marry John Henry IV of Gorizia.