Mirăslău (German: Mireslau; Hungarian: Miriszló) is a commune located in Alba County, Transylvania, Romania.

The commune is composed of six villages: Cicău (Csákó), Decea (Marosdécse), Lopadea Veche (Oláhlapád), Mirăslău, Ormeniș (Marosörményes), and Rachiș (Oláhrákos).

The commune lies at the western edge of the Transylvanian Plateau, on the banks of the Mureș River.

National road DN1 leads south to Aiud, Teiuș, and the county seat, Alba Iulia, 37 km (23 mi) away, and north to Turda and Cluj-Napoca, at a distance of 64 km (40 mi).

The Mirăslău train station serves the CFR Line 300, which runs from Bucharest to Brașov, Teiuș, Cluj-Napoca, and on to the Hungarian border.