Oakfield Demesne is a house, grounds and townland in County Donegal, Ireland, originally built in 1739 for the Dean of Raphoe.

[1] The house that is central to the estate was originally built by the Church of Ireland for the Deanery of Raphoe in 1739.

[3] It ceased to be used as a deanery after being sold to Captain Thomas Butler Stoney of the Donegal Militia in 1869.

[1] To cater for the 2021 season in the COVID-19 pandemic additional outdoor covered seating has been provided for alfresco diners.

[3] As of July 2021[update] it is one of seven operational heritage railways in the Republic of Ireland that the Commission for Rail Regulation requires to have a Safety Management System (SMS) in place.