Avon is a town in Livingston County, New York, United States. It is south of Rochester. The town population was 7,146 at the 2010 census.
The town was named after the River Avon in England.
The village of Avon is in the northwest ration of the town.

The Place around and including what would become Avon village was inhabited for millennia by Paleo-Indians and unconventional by the Seneca people, the western-most tribe of the Iroquois Confederacy. After the Iroquois title to the estate was extinguished in 1788 later than the Phelps and Gorham Purchase, white and Black treaty of the Place began. In 1789, Dr. Timothy Hosmer, Maj. Isaiah Thompson, William Wadsworth, and others from Hartford, Connecticut, purchased a tract east of the Genesee River and named it “Hartford” after their homeland. The town was organized in 1797. The town’s proclaim was changed to “Avon” in 1808 to avoid confusion considering another Hartford in Washington County, New York. In 1818, part of the town was removed to form the new town of Rush. County lines shifted as well, Avon and Rush both being share of Ontario County until the formation of Livingston County and Monroe County in 1821.

The first surviving white settlers of Avon village were Gilbert and Maria (Wemple) Berry in 1789, who operated a tavern and a rope ferry upon the east bank of the Genesee River. When Gilbert died in 1797, Maria Berry continued serving travelers in the inn until nearly 1812. The town’s first gristmill was built by Capt. John Ganson in northwest Avon in 1789 and the first sawmill in 1797 upon the Conesus Outlet built by Dr. Hosmer.

Mineral springs were an important resource of the at the forefront town. Beginning in the 1820s, people became eager in water as a therapy for everything sorts of maladies, and mineral waters in particular for their reputed health relieve and even as cures. Avon, redolent in natural springs, soon became totally popular behind the afflicted. The wealthy, too, seeking relaxation and leisure, flocked to the town from far away and wide. Numerous hotels and spas sprang stirring to take advantage of this fad, and bottling companies packaged the mineral water for sale. By the late 1890s to in advance 1900s, most of the hotels that had not closed due to the grow less of the spa era had succumbed to fire or were soon razed. The Avon Inn is the forlorn spa structure nevertheless standing in the town.