Leer is a town in the district of Leer, in the northwestern part of Lower Saxony, Germany. It is situated on the river Leda, a tributary of the ri…Leer is a town in the district of Leer, in the northwestern part of Lower Saxony, Germany. It is situated on the river Leda, a tributary of the river Ems, near the border with the Netherlands. With 34,958 inhabitants, it is the third-largest city in East Frisia after Emden and Aurich.