There are two main currents of thought on the town's name: the first derives from the name of the family Atti, originally of Todi, who ruled the territory for a certain period, while the second refers to the lime trees in the area, which were already present here before the foundation of the town. There is also a third current, that refers to the Latin name Attilius with the suffix "-anus", which means "of Attilio". It is a municipality in the province of Terni, located on the border with Lazio, not far from the banks of the river Tiber.
The discovery of important relics such as tombs and several objects, evidence that the area was inhabited by the Etruscans. The first settlement was founded by the successors of the Earl Offredo, that followed the Germanic Emperor Otto III, in one of his incursions into Italy. The strategic location of the village, already fortified in the XI century, forced the city of Todi to take over the control. Directly involved in riots and looting, it was disputed between the municipality of Amelia, the city of Todi and the Papal States. In the first half of the XVI century, the small town was granted to the Pope and remained under its rule for nearly a century. In the following years it submitted the domain of several noble Lords, such as: the Farnese, the Raimondi, the Pamphili and the Orsini. During the XIX century the territories of Attigliano were sold to the Borghese.
- the Church of San Lorenzo Martyr, built recently, is decorated with beautiful stained glass windows and features a bronze portal, artwork of the artist Nadia Rognoni;
- the Church of Madonna delle Grazie, which houses a painting of the Virgin, depicted by an unknown author;
- the Bell Tower in Piazza della Rocca, which features an original clock with twelve hours and a single hand;
- Palazzo Baronale, built in the XV century and enlarged in the first half of the XVI, under the domain of the Farnese family. Of the original building remain the six towers and some sections of ancient walls;
- the Fountain of the Dolphins, completed by the artist Ramperti, in 1885, with materials from old quarry of Santa Eugenia.