Sulechów is a town located within the Zielona Góra County, in Lubusz Voivodeship, western Poland. It is the administrative seat of the Gmina Sulechów. Established in the Middle Ages, the town features many historical monuments significant to the Polish Lubusz region. From 1975 to 1998 Sulechów was part of Zielona Góra Voivodeship. The town limits cover 6.88 square kilometres (2.66 sq mi). Olga Tokarczuk, the Nobel Prize in Literature winner for 2018 was born in 1962 in Sulechów.

Jan II the Mad also known as the Bad, the Wild or the Cruel, was a Duke of Żagań-Przewóz since 1439, from 1449 Duke of Przewóz, during 1461–1468 and briefly in 1472 Duke of Żagań and during 1476–1488 Duke of half-Głogów.