Ossett ˈɒsᵻt is a market town in West Yorkshire, England, within the City of Wakefield. Historically part of the West Riding of Yorkshire, it is situated between Dewsbury, Horbury and Wakefield. At the 2021 census, the town had a population of 21,861. Ossett forms part of the Heavy Woollen District.
The name Ossett derives from the Old English and is thought to be either "the fold of a man named Osla" or " a fold frequented by blackbirds".
Ossett is sometimes misspelled as "Osset". In Ellis' On Early English Pronunciation, one of the founding works of British linguistics, the incorrect spelling is used. The British Library has an online dialect study that uses the spelling. One new alternative theory is that it is the place where King Osbehrt died after receiving fatal wounds when fighting the Great Heathen Army of the Vikings at York on 21 March 867. An exceedingly rare clustering of high status Anglian graves, one bearing the Anglian royal symbol