Newtown is a townland in the civil parish of Templeport, County Cavan, Ireland. It lies in the Roman Catholic parish of Templeport and barony of Tullyhaw.
Newtown is bounded on the north by Erraran townland, on the west by Gortnacargy townland in Corlough parish, on the south by Owengallees and Lakefield, Templeport townlands and on the east by Kilsob townland. Its chief geographical features are Lakefield Lough, forestry plantations and dug wells.
Newtown is traversed by minor roads and rural lanes.
The townland covers 94 statute acres.
The 1609 Baronial Map depicts the townland as part of Gortnacargie (now the modern townland of Gortnacargy in Corlough parish).
The 1665 Down Survey map depicts it as Downe.
It was also known as TonyMcCallan (from Irish: Tamnach MacAllan meaning MacAllan’s Pasture')
In the Plantation of Ulster by grant dated 27 February 1610, King James VI and I granted the lands of Gortnekargie containing 4 polls, Dowrie containing 1 poll and Corneha containing 1 poll comprising a total of 300 acres at an annual rent of £3-4s., to John O’Reily and Connor O’Reily, gentlemen. By a deed dated 10 May 1611 between the said Connor McCahir O’Relly of Cargeagh-Callne in County Cavan, gent and John O’Relly of Gortingarge, County Cavan, gent by which they divide between them the 6 poules of land gotten at the last Plantation of the county, viz, the poules of Gortinesimonie, Tirenavan, Dinrewelle, Dune, Dongary and Cornahagh, of which Connor obtained the three first; who is to pay John 10 shillings English yearly insatisfaction of a gallon of land. An Inquisition held at Cavan Town on 31 March 1626 found that the said Cornelius O’Rely, recently of Gortincarge, County Cavan deceased, was seized of said townland of Gortincarge containing 4 polls of land, namely Gortinshemore, Downe and Tyrenewonagh and 2 polls of land in Downe and Corneha. He died on 3 November 1625. His daughter and heir Mor O’Rely was then 15 years old and married.