 The name is derived from the French for "beautiful mount" as the parish is located atop an ascent from Fairview and inspired by its clean air and views across Dublin to the Wicklow Mountains.The name was apparently given by Olivia Whitemore and Arthur Guinness in 1764, as they made their new family home in Beaumont House, a protected structure and can be visited today.Beaumont was originally a farm in the Civil Parish of Coolock, between the townlands of Kilmore Big and Kilmore Little.