| Târnava Mare | |
| Name Other: | Nagy-Küküllő, Große Kokel |
| Map: | Raul Tarnava_Mare.jpg |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Harghita, Mureș, Sibiu, Alba |
| Subdivision Type3: | Towns |
| Subdivision Name3: | Odorheiu Secuiesc, Sighișoara, Mediaș, Blaj |
| Length: | 223km (139miles) |
| Discharge1 Location: | |
| Discharge1 Avg: | 14.5m3/s |
| Source1: | Gurghiu Mountains |
| Source1 Elevation: | 1455m (4,774feet) |
| Mouth: | Târnava |
| Mouth Location: | Blaj |
| Mouth Coordinates: | 46.1711°N 23.8919°W |
| Basin Size: | 3666km2 |
| Tributaries Left: | Șaeș, Vișa |
| Tributaries Right: | Feernic |
The Târnava Mare ("Great Târnava"; Hungarian: Nagy-Küküllő; German: Große Kokel) is a river in Romania. Its total length is 223km (139miles) and its basin size is 3666km2.[1] Its source is in the Eastern Carpathian Mountains, near the sources of the Mureș and Olt in Harghita County. It flows through the Romanian counties of Harghita, Mureș, Sibiu, and Alba. The cities of Odorheiu Secuiesc, Sighișoara, and Mediaș lie on the Târnava Mare. It joins the Târnava Mică in Blaj, forming the Târnava.[2]
The following towns and villages are situated along the river Târnava Mare, from source to mouth: Sub Cetate, Zetea, Brădești, Odorheiu Secuiesc, Feliceni, Mugeni, Porumbeni, Cristuru Secuiesc, Secuieni, Sighișoara, Daneș, Dumbrăveni, Dârlos, Mediaș, Copșa Mică, Micăsasa, Valea Lungă, Blaj.
The following rivers are tributaries to the river Târnava Mare (from source to mouth):
Left: Chiuveș, Vărșag, Șicasău, Pârâul Băutor, Deșag, Brădești, Gorom, Hodoș, Mugeni, Pârâul Caprelor, Scroafa, Pârâul Cărbunarilor, Daia, Șapartoc, Valea Dracului, Vâlcăndorf, Șaeș, Criș, Laslea, Valchid, Biertan, Ațel, Valea Mare, Buzd, Moșna, Ighiș, Vorumloc, Vișa, Șeica, Soroștin, Cenade, Spătac, Veza
Right: Tartod, Creanga Mică, Pârâul Rece, Senced, Busniac, Pârâul Sărat, Cireșeni, Beta, Tăietura, Fâneața Îngustă, Feernic, Goagiu, Eliseni, Rogoz, Valea Morii, Prod, Fântâna Veteului, Giacăș, Șmig, Curciu, Păucea, Chesler, Valea Lungă
The dry grassland habitat beside the river is now part of a (SCI) Site of Community Importance.[3]