Zálší (German: Zalesch) is a village and municipality (obec) in the Ústí nad Orlicí District, Pardubice Region of the Czech Republic.
The municipality covers an area of 7.72 square kilometres (2.98 sq mi), and had a population of 238 (as of 3 July 2006).
Zálší lies approximately 12 kilometres (7 mi) west of Ústí nad Orlicí, 35 km (22 mi) east of Pardubice, and 131 km (81 mi) east of Prague.