Namesakes
Characters in Celtic Mythology:
2 characters
Fíachu Fínscothach (a.k.a. Fiachadh) (m) 
Fíachu Findoilches (a.k.a. Fiachadh) (m)
Irish Kings:
2 kings
King Fíachu Fínscothach (a.k.a. Fiachadh) 975-955 BC
King Fíachu Findoilches (a.k.a. Fiachadh) 863-833 BC