AALBORG, seaport on the south bank of the Limfjord, North Jutland, Denmark, capital of Aalborg amt, and one of Den mark's oldest towns. Pop. (1930), It is the seat of a bishop and has some old buildings, Jens Bangs Stenhus, the castle called Aalborghus, the Holy Ghost monastery and the Budolfi church. The municipal privileges date from 1342. Indus tries include cement works, tobacco works, distilleries, chemical works (sulphuric acid and superphosphate), cloth mills and the ship yard.