Dernancourt (French pronunciation: [dɛʁnɑ̃kuʁ]; Picard: Dèrnincourt) is a commune in the Somme department in Hauts-de-France in northern France.

Dernancourt is situated on the D52 road, some 30 km (19 mi) northeast of Amiens.

The commune was considerably affected by World War I.

127 Commonwealth soldiers are buried in the Dernancourt Communal Cemetery and 2167 are buried in the Dernancourt Communal Cemetery Extension.

This Arrondissement of Péronne geographical article is a stub.