Albert I, Duke of Lower Bavaria (German: Albrecht; 25 July 1336 – 13 December 1404), was a feudal ruler of the counties of Holland, Hainaut, and Zeeland in the Low Countries.

Albert was born in Munich, the third son of Louis IV, Holy Roman Emperor,[1] by his second wife Margaret II, Countess of Hainaut and Holland.

He was only 10 years old when his father died, leaving most of his Bavarian inheritance to his eldest half-brother, Louis V, Duke of Bavaria, but also some appanages to the younger sons.

Margaret had resigned her sovereignty in favour of her son William V, but the result was a period of great upheavals and chaos which gave rise to the formation of these two opposing parties.

Albert did not formally succeed him until his death in 1388, by which time he had already arranged the marriage of his daughters to a number of Imperial princes and other nobles.

The eldest daughter to have children was Margaret; her son Philip III, Duke of Burgundy would ultimately inherit Albert's territories.