Tullyroan (locally [ˌtӧliˈrɔːən, -ˈrɔːnən] [sic];[2] Irish: Tulaigh Uí Ruáin, meaning 'O'Rowan's hill') is a townland lying within the civil parish of Kilcronaghan, County Londonderry, Northern Ireland.

It lies in the centre of the parish and is bounded by the townlands of: Brackaghlislea, Calmore, Cloughfin, Coolsaragh, Gortahurk, Tamnyaskey.

[3] The townland of Tullyroan is derived from the Irish Tulaigh Uí Ruáin meaning "O'Rowan's hill".

[2] Belmount Hill in this townland is derived from the French Bel Mont, meaning "beautiful mountain".

Prior to the Plantation of Ulster, these four townlands constituted the termon (or erenagh) land of the parish, and were known as "Ballintrolla, Derreskerdan, Dirrygrinagh et Kellynahawla".