Hagen is the 37th largest city in Germany, located in the federal state of North Rhine-Westphalia. It is located on the eastern edge of the Ruhr area - 15 km south of Dortmund.

Hagen is a lunar crater on the far side of the Moon. It lies to the north of the huge Planck walled-plain, and south-southwest of Pauli crater.

once a Plough-Keeper in the (now destroyed) village of Smyrton who was husband to Niah. He was accidentally killed by Azhure some forty-three years ago.

Hagen (Officially Rolf C. Hagen Group) is a company founded in 1955 by Rolf C. Hagen with the help of his brothers, Dieter and Horst.