Poisieux (French pronunciation: [pwazjø]) is a commune in the Cher department in the Centre-Val de Loire region of France.

It is a small farming village situated by the banks of the river Arnon. It borders with the department of Indre, some 14 miles (23 km) southwest of Bourges, at the junction of the D190 and the D18 roads.

Historical population

Year	Pop.	±%
1962	180	—
1968	212	+17.8%
1975	210	−0.9%
1982	167	−20.5%
1990	155	−7.2%
1999	158	+1.9%
2008	209	+32.3%

• The church, dating from the nineteenth century.
• The chateau of Mazières.

• Communes of the Cher department