On this page you can find links to the various writings attributable to St Columbanus – in full and summary forms.
Letters of Columbanus to Popes Boniface IV and Gregory I (Gregory the Great)
The Penitential of Columbanus
The Rule of the Monks (Regulae Monachorum)
The Rule of the Community (Regulae Coenobialis)
Poems of Columbanus
The Sermons of Columbanus