Romer, Römer, Roemer, or similar may refer to:Romer (surname), includes a list of people with the name Romer (tool), a cartographic device also known as a reference card Rømer scale, a disused temperature scale named after Ole Rømer Römer, a medieval building in Frankfurt am Main Römer (crater), a lunar crater Romer arm, an industrial measuring device Romer v. Evans, a United States Supreme Court case dealing with civil rights and state laws Romer's gap in the record of vertebrate fossils c. 360–340 million years ago Romer Shoal Light, a lighthouse off the coast of New Jersey, United States Römer (glass), also rummer or roemer, a type of drinking glass popular in early modern Europe