Saint-Martin-aux-Arbres (French pronunciation: [sɛ̃ maʁtɛ̃ o.z‿aʁbʁ]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

A farming village situated in the Pays de Caux, some 22 miles (35 km) northwest of Rouen at the junction of the D467, D88 and the D142 roads. The A29 autoroute forms most of the northern border of the commune.

The arms of Saint-Martin-aux-Arbres are blazoned : Gules, St. Martin on horseback dividing his cloak with an upright beggar to sinister Or, and on a chief argent, 3 trees vert.

Historical population

Year	Pop.	±% p.a.
1968	243	—
1975	230	−0.78%
1982	218	−0.76%
1990	287	+3.50%
1999	283	−0.16%
2007	289	+0.26%
2012	318	+1.93%
2017	324	+0.37%
Source: INSEE

• The church of St. Martin, dating from the thirteenth century.

• Communes of the Seine-Maritime department