Barenton-sur-Serre (French pronunciation: [baʁɑ̃tɔ̃ syʁ sɛʁ], literally Barenton on Serre) is a commune in the department of Aisne in the Hauts-de-France region of northern France.

Barenton-sur-Serre is located some 35 km southeast of Saint-Quentin and 15 km northeast of Laon. National Route N2 passes through the commune from Froidmont-Cohartille in the northeast running southwest through the commune. Access to the village is by road D3060 running west from the N2 to the village then continuing north-west to road D12. There is also access to the village on a country road from Froidmont-Cohartille. There is quite a large area of forest north of the village and in a belt extending southeast of the village. The rest of the commune is all farmland.

The Ru de Barentons flows from the south of the commune into the Souche river which flows from east to west through the commune then continues northwest to join the Serre river.

This list is incomplete; you can help by adding missing items. (April 2021)

List of Successive Mayors of Barenton-sur-Serre

From	To	Name	Party
1995	2008	Gérard Cuvillier	DVD
2008	2014	Sébastien Lhermine
2014	2020	Bruno Séverin
2020	Present	Christian Lecuyer

Historical population

Year	Pop.	±% p.a.
1968	109	—
1975	97	−1.65%
1982	112	+2.08%
1990	106	−0.69%
1999	109	+0.31%
2007	111	+0.23%
2012	118	+1.23%
2017	134	+2.58%
Source: INSEE

• 
  The Church
• 
  Jedburgh Augustus Memorial
• 
  The Souche river from the bridge
• 
  The War Memorial

• Communes of the Aisne department

• Barenton-sur-Serre on the old National Geographic Institute website (in French)
• 40000 Bell Towers website (in French)
• Barenton-sur-Serre on Géoportail, National Geographic Institute (IGN) website (in French)
• Baranton sur Serre on the 1750 Cassini Map