Ballygall (Irish: Baile na nGall, meaning 'townland (baile) of the foreigners') is a small suburban area located between Glasnevin and Finglas, on the northside of the city of Dublin, Ireland. It is also a townland divided between the civil parish of Finglas and that of Glasnevin. It was settled by Vikings in the 11th century, and later by the Cambro-Normans.

The area is largely residential, with St Kevin's College, some shops, and a church and schools.

The Cambro-Normans called it Fyngallestoun, the township of Fingal, but the indigenous Gaels called it the town of the Galls, or foreigners, hence in Gaelic, Baile na nGall. Whether from the Normans or the Gaels, it was abbreviated later in old charters to Gallstoun. It seems to have been originally settled by a man called Arthur, hence it appears also as Arthurstoun. It seems to have morphed from Gallstoun to Ballygall sometime in the 16th century. There are many similarly named denominations in the archives of the Registry of Deeds.

A place called Arthureston is mentioned explicitly as a manor in the Chancery Rolls of Ireland in several places under several entries during the reign of King Edward III in the 14th century. A very specific reference to Fyngaleston relates to Cristofor de Preston. It is also mentioned in the Calendar of the Gormanstown Register as a manor, and was the original seat of the Prestons, the principal landholders of Fingal, before they moved to and became lords and later Viscounts of Gormanston. It was granted in 1318 as a Manor to William de Prestoun:

Charter. Edward (II), King of England, lord of Ireland, Duke of Aquitaine, in consideration of his good and laudable service, has granted to William de Prestoun, burgess of Drogheda, a messuage and a carucate and a half of land, with appurtenances, in Arthurestoun, which belonged to Hugh de Lacy, knight, of the gift of Henry de Fyngal, and which came to the king’s hands, as his escheat for the felony and forfeiture of said Hugh, who with the Scotch enemies of the king, with standard displayed, rose against the king with an armed force in Ireland, for which felony and forfeiture he was disinherited by judgement of the king’s court. To hold to William and his heirs for ever, of the King and his heirs, by service of rendering a rose yearly at the feast of St. John the Baptist. Witness, Roger de Mortuo mari [Mortimer], lieutenant of the King in Ireland, at Drogheda, 31 March a.r.xj. Edward [II] (1318).

A quit-claim of 1334 in the Gormanston Register also refers: Quit-claim of Arthurestoun, which is called Fyngallestoun. Hugh de Lacy, knight, has for ever released to William de Prestoun, burgess of Drogheda, all his right and claim.

Fyngalleston was the first royal grant made to the Prestons in Ireland, for laudable services, an honour. It was previously a knight's property, with associated demesnes and lordships. It may in fact be the only manorial title which the Prestons held originally directly from the Crown (as distinct from those to which they succeeded from others). It was therefore held as tenants-in-chief, and as their initial principal manor. Although the Prestons later disposed of the lands, the lordship of the manor was not alienated, and remained with the Prestons under reversion, and passed eventually to a resident of Ballygall. At the time in 1363 when the lands were being disposed, Robert de Prestoun was deeply involved in the acquisition of the more substantial Manor of Gormanston. In fact Gormanston was acquired in the same year as the lands at Fyngallestoun were disposed. It is not known exactly when the manor of Fyngallestoun ceased to function as a manor (with courts leet and baron), but it is likely that it ceased when the Prestons moved from Fyngallestoun to Gormanston c. 1363, which then became their chief manor (and for which extensive records of manorial courts exist still in the ownership and custody of Viscount Gormanston). The shift in nomenclature of Fyngallestoun/Gallstoun to Ballygall probably occurred in the 16th century.

Historically, a large part of the original townland of Ballygall belonged to the Ball family. Margaret Bermingham (1515-1584) married Bartholomew Ball, a prosperous merchant who held houses in Ballygall and Merchants’ Quay. Their manor house Ballygall House was built in the early 16th century, most likely on the site of the old Manor of Fyngallestoun, and was located where the modern housing estate now called Hillcrest Park is located. Ballygall House was located between the present houses numbered 10–60 in Hillcrest Park, its demesne extending to Glasnevin Avenue. The Ballygall estate which belonged to the Ball family in the 16th century was used for agricultural purposes right up to 1964 when the last owners, the Craigie family of Merville Dairy in Finglas, sold it for housing development.