| Type: | commune |
| County: | Bihor |
| Population Total: | auto |
| Tărcaia | |
| Other Name: | Köröstárkány |
| Coordinates: | 46.6333°N 44°W |
Tărcaia (Hungarian: Köröstárkány) is a commune in Bihor County, Crișana, Romania with a population of 1,969 people. It is composed of four villages: Mierag (Mérág), Tărcaia, Tărcăița (Tárkányka) and Totoreni (Tatárfalva).
Tărcaia lies along the river bank of the Crișul Negru in the southeastern part of Bihor County,around 65 km south-east of Oradea and 4 km south of Beiuș.
According to the 2002 census, the ethnic structure is 53.89% Hungarians with a population of 1161, 45.91% Romanians with a population of 989. There is also a small community of Ukrainians and Germans, respectively 0.13% and 0.04%.[1]