Inistioge (/ɪnɪʃˈtiːɡ/; Irish: Inis Tíog) is a small village in County Kilkenny, Ireland. Historically, its name has been spelt as Ennistioge, Ennisteage, and in other ways. The village is situated on the River Nore, 25 kilometres (16 mi) southeast of Kilkenny. Inistioge is in a townland and civil parish of the same name.

Situated along the River Nore, Inistioge is entered by crossing a 10 arch stone bridge. The village has a tree-lined square and a number of 18th and 19th century homes along the river. Inistioge and its village green have been used as a filming location for a number of films. Inistioge developed significantly during the 18th and 19th centuries as a part of the Tighe families' Woodstock Estate.

The earliest recorded reference to Inistioge refers to a battle between the kingdom of Osraighi and an army of Norsemen, recorded as taking place in the year AD 962 in the Annals of the Four Masters.

Due to its location at the lowest point of the River Nore's crossing and the fact that the Osraige fought Olaf Cuaran, King of Dublin, in Inistioge in 964, it is possible that Inistioge was first inhabited by Vikings.

Thomas FitzAnthony received the land grant in 1169, and in 1206 he founded the Augustinian Priory. The priors expanded the community, but Inistioge suffered once the monasteries were dissolved in 1540. In 1566, Sir Edmond Butler was given ownership of the priory's possessions.

James I created weekly markets on Fridays and an annual fair on 13 December after Inistioge was constituted as a town in 1608. The Cromwellians attacked the town in 1649 and eventually took it over.

The 18th and 19th centuries brought new development as the core square of the village became a planned estate village by the Tighe family of the Woodstock Estate.

The parliamentary borough of Inistioge sent two MPs to Irish House of Commons until its abolition in 1801. It was not enfranchised in the United Kingdom House of Commons.