Römer is a lunar impact crater that is located to the north of the Sinus Amoris in the northeast section of the Moon.

It was unofficially named as Atatürk by astronomer Hugh Percy Wilkins in his lunar map, possibly due to the fact that the Montes Taurus (or Toros Dağları in Turkish) are located in Turkey.

To the west-northwest is the crater-bay Le Monnier, on the eastern edge of Mare Serenitatis.

There is a small craterlet on the north part of the floor, and a large central peak at the midpoint.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Römer.