Sliven is a locality located 245.55 km west from Sofia in Sliven Province, Bulgaria. The population of Sliven is 91,298 people. Gorna Oryahovitsa, Karnobat, Nova Zagora are located close to Sliven. You can find Sliven on any map using the following decimal coordinates: 42.6781 (latitude), 26.326 (longitude).