Flesselles (French pronunciation: [flɛsɛl]; Picard: Fléchèle) is a commune in the Somme department in Hauts-de-France in northern France.

Flesselles is situated on the D933 road, some 8 miles (13 km) north of Amiens.

The 17th–18th-century château, with vestiges of the ancient 14th-century fortress at the base of its tower.

Since October 2011 the „école primaire“ in Flesselles has a Comenius-partnership.

Declared school-partners are the Volksschule Altomünster (Germany/Bavaria) and the „Primary School“ in Crook (England).