Cappy (French pronunciation: [kapi]; Picard: Capin) is a commune in the Somme department in Hauts-de-France in northern France.

Cappy is situated on the D1 road, some 20 miles (32 km) east of Amiens, by the banks of the river Somme.

• Two Roman villas have been found within the boundaries of the commune.
• Known as "Capiacum" in 887, from the earlier name "Caput Loci" which suggests a fortress was built to defend the passage of the Somme.
• In the 10th century, the village had a priory. Robert I of Péronne was the seigneur.
• In 1260, Cappy was one of 25 Picardie towns to receive its charter from Louis IX.
• In 1373, The priory, the village and the château were destroyed by the Earl of Warwick.
• The village was also pillaged during the wars with Spain.

Historical population

Year	Pop.	±% p.a.
1968	549	—
1975	513	−0.96%
1982	510	−0.08%
1990	484	−0.65%
1999	485	+0.02%
2007	543	+1.42%
2012	529	−0.52%
2017	535	+0.23%
Source: INSEE

• Saint-Nicolas church, built in the lower village. The tower dates from 1654. Partially rebuilt in 1920, after the battles of 1916.
• The railway museum 'Chemin de fer Froissy-Dompierre'.

• Froissy Dompierre Light Railway
• Communes of the Somme department

• Cappy historical website (in French)