Tepebaşı is a municipality and district of Eskişehir Province, Turkey. Its area is 1,403 km2, and its population is 384,645, 42% of the provincial population. The Mayor of Tepebaşı is Ahmet Ataç. Tepebaşı District covers the northern part of Greater Eskişehir, and the adjacent countryside. It lies to the north of Porsuk River which flows through the center of Eskişehir.Wikipedia