Inishkeel (Irish: Inis Caoil)[3] is a small tidal island and townland[1] off the coast of County Donegal, Ireland.

A sandy tidal bank connects, with low tide, the island with the mainland.

Their religious leader was Saint Conall Cael, from whom the island later derived its name.

[5] For its artistical and archeological importance the island was declared National Monument (code: DG064-003).

[7] A small community used to live on Inishkeel in the past, and in year 1841 23 inhabitants were registered on the island.