[2] Sedlejov is located about 20 kilometres (12 mi) south of Jihlava.

The highest point is a nameless hill at 651 m (2,136 ft) above sea level.

The Moravian Thaya River flows along the eastern municipal border.

For its entire feudal history, it belonged to the Telč estate.

[2] Sedlejov is located on the railway line Havlíčkův Brod–Slavonice.