Jarlath is an Irish given name. Notable persons with this name include:

• Iarlaithe mac Loga or Saint Jarlath (fl. 6th century), Irish priest and scholar, founder of School of Tuam and patron saint of Archdiocese of Tuam
  • St. Jarlath's College, Roman Catholic secondary school for boys in Tuam, County Galway, Ireland
  • St Jarlath's Park, Gaelic Athletic Association stadium in Tuam, County Galway, Ireland
• Jarlath Carey (1932–2006), Northern Ireland Gaelic footballer
• Jarlath Conroy (born 1944), Irish-born actor
• Jarlath McDonagh (born 1945), Irish politician (Fine Gael)
• Jarlath Cloonan (born 1953), former County Galway Senior Hurling Manager
• Jarlath Fallon (born 1973) is a Gaelic footballer
• Jarlath Regan (born 1980), Irish stand-up comedian
• Jarlath Henderson (born 1985), Northern Irish folk musician