Söğüt is a town and district of Bilecik Province in the Marmara region of Turkey. Söğüt has an area of 599 km² (231 sq mi) and borders Bilecik to the west, Gölpazarı to the north, İnhisar to the northeast, Eskişehir to the southeast, and Bozüyük to the southwest. The 2000 census put the population at 21,012 citizens, and according to a 2010 estimate, the population was 19,425. Söğüt has 5 boroughs and 23 villages. Two of these villages, Çaltı and Küre, have a municipality. Söğüt is 31 km away from Bilecik and 52 km away from Eskişehir. It depends economically on Eskişehir. The mayor is Osman Güneş (AKP).

Söğüt was a Seljuk Turkish tribe in western Anatolia that later gave birth to the Ottoman Empire. It was a small but sophisticated tribe that extended from the Kayi branch of the Seljuk Turks that in the 12th and 13th centuries invaded Anatolia. The village of Söğüt was surrounded by three greater Turkish tribes; Eskenderum in the north, Eskişehir in the east, Konyali in the south; and with the Byzantine Empire in the west. Legend has it that the bey (chief) of the tribe in the late 13th century, Ertuğrul, bravely kept the enemies at bay so that his son, Osman, could conquer them all during his reign, 1299 to 1324. When Osman's son, Orhan, came to power after his father's death he renamed the tribe Osmanli in honour of his father. The village of Söğüt (formerly Thebasion until 1231) later grew into a town that served the Osmanli tribe as capital until the capture of the Byzantine city of Prusa in 1325 when the capital was moved to the far more luxurious palaces of the Byzantines.

Neşet Ertaş (born 1938 in Çiçekdağı, Kırşehir) is a Turkish folk music singer, lyrics writer and a virtuoso of the traditional Turkish instrument bağlama. His profession in Turkish is known as halk şairi, which literally means "folk poet".

He was born in 1938, in Kırtıllar, a village in Kırşehir to his father Muharrem Ertaş, also a halk şairi, and his mother Döne Koç. Neşet Ertaş went to primary school for only 2 years, Before this he used to play the violin then the saz (the Turkish national instrument, baglama).

Neşet Ertaş interprets musical pieces of the Abdal tradition, following his father. With his forceful saz, his warm voice pure and simple language has Neşet Ertaş in a short time gathered people from Central Anatolia then the whole of Turkey.

Ömer Zülfü Livanelioğlu (b. 1946 Ilgın, Turkey) is a popular Turkish folk musician (singer and composer), a novelist, newspaper columnist and a film director who has been highly popular for decades. He is also a prominent left-wing and social-democrat politician and was a member of the Turkish parliament for one term.

He is most known for his fusion of Turkish folk music with contemporary music, in much the same way as Bob Dylan and his contemporaries in the United States. His 1997 Ankara concert was attended by no less than 500 thousand people. His collaborations with Mikis Theodorakis of Greece have been noted as a gesture of bringing together the two countries. Livaneli has been a UNESCO Goodwill Ambassador since 1996.