Leer is a district in Lower Saxony, Germany. It is bounded by the city of Emden, the districts of Aurich, Wittmund, Friesland, Ammerland, Cloppenburg and Emsland, and by the Netherlands.
Wikipedia https://en.wikipedia.org/wiki/Leer_(district)
Coordinates 53°13'57.945" N 7°27'27.815" E