Thérouldeville (French pronunciation: [teʁuldəvil]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

A farming village in the woodland valley of the river Valmont in the Pays de Caux, situated some 29 miles (47 km) northeast of Le Havre, at the junction of the D33, D69 and D17 roads.

The arms of Thérouldeville are blazoned : Vert, the local church in profile, door to dexter argent, a chief per pale 1: barry argent and gules, a lion sable crowned Or; and 2: gules, 2 swords in saltire Or.

Historical population

Year	Pop.	±% p.a.
1968	360	—
1975	292	−2.95%
1982	340	+2.20%
1990	423	+2.77%
1999	457	+0.86%
2007	520	+1.63%
2012	644	+4.37%
2017	664	+0.61%
Source: INSEE

• The church of St. Pierre and St. Paul, dating from the sixteenth century.
• The remains of Valmont Abbey.

• Communes of the Seine-Maritime department