The Târnava is a river in Romania. It is formed by the confluence of the Târnava Mare and Târnava Mică in the town of Blaj. The Târnava flows into the Mureș after 23 km near the town of Teiuș. The two source rivers of the Târnava are the Târnava Mare and Târnava Mică, and its tributaries include the Tur, Izvorul Iezerului, Secaș, and the Dunărița. Its drainage basin covers an area of 6,253 km2 (2,414 sq mi).