Main Dolomite (German: Hauptdolomit, Hungarian: Fődolomit, Italian: Dolomia Principale) is a lithostratigraphic unit in the Alps of Europe.

Middle to Late Triassic sedimentary record in the Alpine realm is characterized by presence of various masses of dolomitic rock formations.

The formation is found in: It is primarily made of dolomite, ranging from 0 to 2,200 metres (0 to 7,218 ft) in thickness.

The formation was deposited in shallow lagoons during the Late Carnian and Early Norian ages of the Late Triassic Epoch in the Triassic Period, during the Mesozoic Era.

Fossil sauropodomorph tracks, likely made by a plateosaurid, have been reported from the formation.