Rouvray-Saint-Denis (French pronunciation: [ʁuvʁɛ sɛ̃ dəni]) is a commune in the Eure-et-Loir department in northern France.

It has long been thought that it was the site of the Battle of the Herrings in 1429, when Sir John Fastolf beat off an attack on an English convoy taking supplies to the siege of Orléans; but in his biography of Fastolf, The Real Falstaff, Stephen Cooper argues that the battle is more likely to have taken place at Rouvray-Sainte-Croix.

Historical population

Year	Pop.	±%
1962	385	—
1968	358	−7.0%
1975	308	−14.0%
1982	309	+0.3%
1990	326	+5.5%
1999	359	+10.1%
2008	435	+21.2%

• Communes of the Eure-et-Loir department