Ummera is a townland in the Civil Parish of Tomregan, Barony of Knockninny, County Fermanagh, Northern Ireland.
The townland name is an anglicisation of the Gaelic placename “Iomaire” which means ‘The Hill-Ridge’.
It is bounded on the north by Gortaree townland, on the east by Aghindisert and Drumderg townlands, on the south by Gortineddan townland and on the west by Gortmullan and Knockateggal townlands. Its chief geographical feature is a drumlin hill reaching to 60 metres above sea-level.
The townland is traversed by the Border Road to Ballyconnell and the Teemore Road.
Ummera covers an area of 107 statute acres.
The townland formed part of the ballybethagh of Calvagh in medieval times. At the beginning of the 17th century it was owned jointly by Bryan McPhilip O’Reyly and Edward Rutlidge but was confiscated by the Crown in the 1609 Ulster Plantation and it formed part of the half-territory of Aughrin which was granted to Sir Hugh Culme in 1610. Culme later relinquished his claim to the Crown, perhaps because there was confusion at the time as to whether the townland formed part of County Fermanagh or County Cavan. By an order of the Lord Deputy dated 14 October 1612 the townland was granted, inter alia, to Lady Margaret O’Neill, the widow of Sir Hugh Maguire deceased.
The Tithe Applotment Books for 1827 list the following tithepayers in the townland- McKenna, Crawford, Cosgrove, Wallace, Ross, McGee.
The population of the townland in the 1841 census was 81.
Griffith's Valuation of 1857 lists twelve occupiers in the townland.
In the 1901 census of Ireland, there are ten families listed in the townland.
In the 1911 census of Ireland, there are nine families listed in the townland.
There are no historic sites in the townland.