Manresa House is a retreat centre run by the Society of Jesus in the Dollymount area of Clontarf in Dublin, near Saint Anne's Park.

It was originally known as Granby Hall, and then Baymount Castle and included 17 acres of land surrounding the house.

Vernon by Robert Warren who largely remodelled the house in a gothic revival castellated style, possibly by the architect George Papworth.

[3] In 1948, the Archbishop of Dublin, John Charles McQuaid asked the Jesuits to establish a spirituality centre in the Dollymount area, so they bought Baymount Castle.

[9] The Irish Jesuit Novitiate was moved from Emo Court in County Laois in 1969 to a building in the grounds of Manresa House.

[12] The windows were originally in the former Jesuit school St Stanislaus College, Tullabeg, County Offaly.

Joseph Dargan, Laurence Murphy, Paddy Carberry were among those who served as masters of novices in Manresa.

The rôle of Superior has been occupied variously by Dónal Mulcahy, Kieran Hanley (1989–1993), Paul Andrews, Joe Dargan and Mike Drennan.