Tullyhommon or Tullyhomman (from Irish: Tulaigh Uí Thiomáin, meaning "Ó Tiomáin's hillock") is a small village in County Fermanagh, Northern Ireland. It is beside the bigger village of Pettigo, which lies in County Donegal in the Republic of Ireland. The two are divided by the River Termon, which forms part of the boundary between Northern Ireland and the Republic.