Maillebois (French pronunciation: [majbwa]) is a commune in the Eure-et-Loir department in northern France. The Blaise, a tributary of the Eure, runs through the town.

The Commune along with another 70 communes shares part of a 47,681 hectare, Natura 2000 conservation area, called the Forêts et étangs du Perche.

Historical population

Year	Pop.	±%
1962	1,040	—
1968	770	−26.0%
1975	843	+9.5%
1982	828	−1.8%
1990	821	−0.8%
1999	917	+11.7%
2008	990	+8.0%
2016	930	−6.1%

• Chateau de Maillebois, a registered monument
• Rouvray farm, a former Chateau Fort (which is a fortified building, like a fortress, but often also a practical building) and registered monument. It was a fort during the Hundred Years' War.
• Les Forges de Dampierre-sur-Blévy, a former foundry and a registered monument
• Dreux-Louvilliers Air Base is a former United States Air Force base near Maillebois

• Jean-Baptiste Francois des Marets, marquis of Maillebois, was a Marshal of France.
• Paul-Félix Armand-Delille, bacteriologist who introduced the myxomatosis virus in his estate of the château.
• Hubert Latham lived in the Chateau de Maillebois (the family home)

• Communes of the Eure-et-Loir department

• 
  Rouvray farm
• 
  Chateau de Maillebois
• 
  Bust of Hubert Latham in the town centre.
• 
  Aerial photograph of Dreux-Louvilliers Air Base
• 
  The Blaise in Maillebois

• Town website
• Les Forges de Dampierre-sur-Blévy website