Tamnaherin (possibly from the or 'field of the blackthorns') is a townland and small housing estate in County Londonderry, Northern Ireland. In the 2001 Census it had a population of 123 people. It is situated within Derry and Strabane district.

History

In the early 19th century, Tamnaherin simply consisted of a few scattered rural properties. The relatively recent addition in the 1970s of a Roman Catholic church saw the building of several more properties. Development over the last few years, however, has seen the hamlet grow quite significantly due to the addition of a small housing estate.