Promontorium Agassiz is a mountainous cape situated on the northeast margin of Mare Imbrium on the near side of the Moon. Its selenographic coordinates are 42.4ð N, 1.77ð E. It is located south of Promontorium Deville and Mons Blanc, northeast of Mons Piton, and northwest of Cassini crater.
Promontorium Agassiz is named after Jean Louis Rodolphe Agassiz, a Swiss zoologist and geologist. The name of the feature was approved by the IAU in 1935.