Fillan refers to a location in Scotland associated with Saint Fillan, an eighth-century monk from Munster. According to historical records, the saint studied at Taghmon Abbey before traveling to Scotland, where he eventually settled at Strath Fillan.
The name is also linked to various spellings, including Filan, Phillan, Fáelán, and Faolán. While the provided source identifies the location as a settlement in Scotland rather than a city in Norway, it remains primarily recognized for its historical connection to the monastic activities of Saint Fillan.