Taunton is a city in and the county seat of Bristol County, Massachusetts, United States. Taunton is situated on the Taunton River, which winds its way through the city on its way to Mount Hope Bay, 10 miles (16 km) to the south. As of the 2020 census, the city had a population of 59,408; this makes Taunton the third most populated municipality in Bristol County behind New Bedford and Fall River. Shaunna O'Connell is the mayor of Taunton.

Founded in 1637 by members of the Plymouth Colony, Taunton is one of the oldest towns in the United States. Taunton is also known as the "Silver City", as it was a historic center of the silver industry beginning in the 19th century when companies such as Reed & Barton, F. B. Rogers, Poole Silver, and others produced fine-quality silver goods in the city.

Since December 1914, the city of Taunton has provided a large annual light display each December on Taunton Green, giving it the additional nickname of the Christmas City.

The original boundaries of Taunton included the land now occupied by many surrounding towns, including Norton, Easton, Mansfield, Dighton, Raynham, Berkley, and Lakeville. Possession of the latter is still noted by the naming of Taunton Hill in Assonet.

Taunton was founded by settlers from England and officially incorporated as a town on September 3, 1639. Most of the town's settlers were originally from Taunton in Somerset, England, which led early settlers to name the settlement after that town. At the time of Taunton's incorporation, they explained their choice of name as being "in honor and love to our dear native country." Prior to 1640, the Taunton area was called Cohannet, Tetiquet, or Titiquet.

The English founders of Taunton purchased the land from the Wampanoag Natives in 1637 as part of the Tetiquet Purchase and the remaining native families were relocated to the praying town of Ponkapoag in present-day Canton, Massachusetts. Elizabeth Poole, contrary to local folklore, did not take part in the town purchase but was among its greatest benefactors and played a significant role in the founding of its church. Described as "the foundress of Taunton" and its matriarch, Poole "was accorded equality of rights, whether in the purchase of lands, [or] in the sharing of iron works holdings," having been a financier of the settlement's first dam and mill built for the manufacture of bar iron. Plymouth Colony was formally divided into counties on June 2, 1685, with Taunton becoming the shire town of Bristol County. The counties of Plymouth Colony were transferred to the Province of Massachusetts Bay on the arrival of its charter and governor on May 14, 1692. The Taunton area has been the site of skirmishes and battles during various conflicts, including King Philip's War and the American Revolution. Taunton was re-incorporated as a city on May 11, 1864.

In 1656, the first successful iron works in Plymouth Colony was established on the Two Mile River, in what is now part of Raynham. The Taunton Iron Works operated for over 200 years until 1876. It was the first of many iron industries in Taunton.

During the 19th century, Taunton became known as the "Silver City", as it was home to many silversmithing operations, including Reed & Barton, F.B. Rogers, the Poole Silver Company, and the Taunton Silverplate Company.