Dorsum Grabau
Image:Dorsum Grabau AS15-M-1548.jpg|300px|thumb|right|Oblique view facing north from Apollo 15. The small crater near top center is Landsteiner.
Dorsum Grabau is a wrinkle ridge at north of Timocharis crater in Mare Imbrium on the Moon. It is 124 km long and was named after American paleontologist Amadeus William Grabau in 1976.