Ulieà() is a commune in Harghita County, Romania. It lies in the Székely Land, an ethno-cultural region in eastern Transylvania. The commune is composed of eight villages: Daia (), IaÃÂu (), Ighiu (), NicoleÃÂti (), ObrÃÂneÃÂti (), Petecu (), UlieÃÂ, and Vasileni ().
The route of the Via Transilvanica long-distance trail passes through the villages of Daia, IaÃÂu, and UlieÃÂ.
The commune has an absolute Székely Hungarian majority. According to the 2002 census it had a population of 1,273, of which 98.59% or 1,255 were Hungarians. At the 2011 census, the commune had 1,193 inhabitants; of those, 91.03% were Hungarians, 4.78% Roma, and 1.17% Romanians. At the 2021 census, Ulieàhad a population of 1,068, of which 90.17% were Hungarians.