Frankfurt an der Oder, city, Brandenburg Land (state), eastern Germany. It lies on the west bank of the Oder River opposite the Polish town of Słubice, which before 1945 was the Frankfurt suburb of Dammvorstadt. An early medieval settlement of Franconian colonists and traders, Frankfurt was chartered in 1253 and joined the Hanseatic League in 1368. In 1379 it received the right to free navigation on the Oder, and later its fairs became important. A university founded there in 1506 was transferred to Cottbus from 1516 to 1539. Dissolved during the Thirty Years’ War and later reestablished by Frederick William of Brandenburg, the Great Elector, the school was finally removed to Breslau (now Wrocław, Poland) in 1811. Frankfurt was besieged by Soviet forces and seriously damaged in World War II but was reconstructed afterward.
Frankfurt is a busy road and rail transit point for trade with eastern Europe, and it has an inland harbour on the Oder about 6 miles (10 km) north of that river’s junction with the Oder-Spree Canal. Machinery, furniture, foodstuffs, shoes, and textiles are manufactured. Frankfurt’s notable landmarks include the 15th-century Church of St. Mary (Marienkirche), the town hall (remodeled 1607–09), the Church of St. Nicholas (Nikolaikirche), the old university buildings, and the Kleist Museum, which is now a memorial to the poet Heinrich von Kleist and which contains a large library. The city is the seat of the Viadrina European University (founded 1991). Pop. (2003 est.) 67,014.