Foglia is a frazione of the Italian comune of Magliano Sabina, in the province of Rieti, Lazio.
Foglia is located on a tuff plateau in the Tiber Valley, between the mouth of the to the north and the to the south, almost opposite the mouth of the river on the Tiber.
The town sits close to an ancient ford of the Tiber where it joins the Tiber Valley between Treja and Aia valley an prehistory-archaic way to Archaeological area of Poggio Sommavilla and Falerii Veteres. Inside the town, on the side of the Autostrada del Sole, and above what remains of a necropolis created in the tuff plateau on which the town itself stands, is an inscription in the Faliscan alphabet where a dictus was found. It is located on a slab of local sandstone. The letters are in height, except the sigma which is and the V sign which is .
In 1817 Foglia was an autonomous municipality; it was then annexed from 1827 to 1853 to the municipality of Collevecchio and then, from 1853, to the municipality of Magliano Sabina, of which it is still a frazione.