Killycarnan ({{Irish place name|Coill Charnáin|wood of the small carn/heap}}) is a townland in the north of County Monaghan in Ireland, to the south east of the townland of Sheskin in the parish of Tydavnet.
Killycarnan was once the location of a national school, which subsequently was relocated to Sheskin, but kept the name of Killycarnan. The Sheskin school was also subsequently closed in the 1980s.