Senan is an Arabic name meaning "spearhead" or "point of a spear."
Senan is a name steeped in the sacred landscape of early medieval Ireland. Derived from the Old Irish "sen," meaning ancient, wise, or old, the name carries connotations of deep time and spiritual authority. Its most celebrated bearer is Saint Senan of Scattery Island (c.
488–544 AD), the founder of a monastery on Inis Cathaigh in the Shannon Estuary off County Clare. According to hagiographic tradition, Senan famously drove a fearsome sea monster from the island before establishing his monastic community — a narrative that fuses the Christian saint's life with older layers of Celtic mythology about the taming of wild, elemental forces. His feast day falls on March 8, and his monastery became an important center of learning and pilgrimage in the early Irish church.
The name persisted through the centuries in Munster and Connacht, carried especially by families in County Clare and County Kerry who maintained devotion to the saint. In modern Ireland, Senan has experienced a quiet revival alongside the broader rediscovery of ancient Irish names — names like Ciarán, Ruairí, and Tighearnach — that connect children to pre-Norman Irish identity. Outside Ireland, Senan is still rare enough to feel genuinely distinctive while being immediately pronounceable (SEN-ən) and easy to spell. It offers Irish heritage parents a name of authentic depth, one that carries both monastic gravity and the wild poetry of a saint who wrestled monsters from the sea.