Satu Mare (Hungarian: Máréfalva, pronounced [ˈmaːreːfɒlvɒ]) is a commune in Harghita County, Romania.

It belonged to Udvarhelyszék district until the administrative reform of Transylvania in 1876, when they fell within the Udvarhely County in the Kingdom of Hungary.

After Soviet occupation, the Romanian administration returned and the village formally became part of Romania again in 1947.

This traditional village, famous for its dove-cotted gates, lies at an altitude of 540–560 m, in the narrow valley of the Fenyéd Stream, along the 13A road, 9 km from Odorheiu Secuiesc, at the foot of the Cekend Plateau.

The gates of Udvarhelyszék differ from those of historical-ethnographical districts of Csíkszék, Kászonszék, Gyergyószék and Háromszék in their rich ornamentation.