Adomnán or Adamnán o Iona (Laitin: Adamnanus, Adomnanus; c. 624 – 704), an aa kent as Eunan (frae Erse Naomh Ádhamhnán), wis an aibot o Iona Aibey (r. 679–704), hagiographer, statesman, canon jurist, an saunt.