Fiach
# Fiach

Fiach is an Irish male given name. It may refer to:

* Saint Fiacc, fifth-century bishop of Sletty in Ireland
* Fiach McHugh O'Byrne (1534–1597) Irish chief
* Fiach Mac Conghail (born 1964) Irish theatre director and Senator
* Fiach Moriarty, Irish singer-songwriter
