Grangegorman (Irish: Gráinseach Ghormáin) is a suburb on the northside of Dublin city, Ireland. The area is administered Dublin City Council. It is also a civil parish in the historical barony of Dublin. It is best known as the location of St Brendan's Hospital which was the main psychiatric hospital serving the greater Dublin region. Along with Stoneybatter and Glassmanogue, Grangegorman was recorded in 1610 as one of only three remote villages in this region and at that stage, lying north of Ostman town and north of the River Liffey. They were not joined to the city of Dublin. The area is currently the subject of a major redevelopment plan under the aegis of the Grangegorman Development Agency.
Etymology
The name Grangegorman, as with other placenames containing the name "gorman" in the Leinster region, probably indicates that at one time this territory was held by the Uí Bairrche, an Irish clan based in Leinster. The two main representatives of this clan were Uí Treasaig (Tracey) and Mac Gormáin (MacGorman). They were displaced following the Norman invasion of Ireland from the twelfth-century.