Sir Ralph Fetherston, 1st Baronet (died May 1780) was an Anglo-Irish politician.
Fetherstone represented County Longford in the Irish House of Commons from 1765 to 1768.
Between 1768 and his death in 1780 he represented St Johnstown.
[1] On 4 August 1776 he was created a baronet, of Ardagh in the Baronetage of Ireland.
On his death his title passed to his son, Thomas Fetherston.