Tuathal ( Old Irish: Túathal) is an Irish male name meaning [ruling with] 'fervour over the people' or 'valour of the tribe', from Old Irish túath 'people, tribe, tribal territory' + gal 'ardour, valour', from Proto-Celtic *galā 'might, ability'.

tuathal is also the Modern Irish for movement anticlockwise or widdershins, from the Old Irish túath 'left, north' + sel 'turn', from a different Proto-Celtic root not meaning 'people, tribe', see there, sense 2 for details.

People with the name include:

• Túathal Techtmar, legendary king
• Túathal Máelgarb (fl. 6th century), king of Tara
• Túathal mac Máele-Brigte (died 854), king of Leinster
• Tuathal Mac Augaire (died 958), king of Leinster
• Túathal (bishop of the Scots) (fl. 1050s), bishop of Cennrígmonaid, modern St Andrews
• Tuathal Ua Connachtaig (fl. 12th century) Irish bishop of Kells or Breifne

The surname O'Toole is an anglicisation of Ó Tuathail ( Old Irish: Ua Túathail), meaning grandson or descendant of Túathal. One instance is the O'Toole family prominent in medieval Wicklow, who claimed descent from Tuathal Mac Augaire.

Placenames associated with the name include:

• Listowel (Irish: Lios Túathail) 'Túathal's ringfort', a town in County Kerry
• Carrauntoohil (Irish: Corrán Túathail) 'Túathal's sickle', a mountain in County Kerry
• Glasthule (Irish: Glas Túathail) 'Túathal's stream', a suburb of Dublin

See also

• Túathalán (died 749), abbot of Cennrígmonaid, modern St Andrews

Name list

This page or section lists people that share the same given name.
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