Alto, O.S.B., (died c. 760) was a Benedictine abbot active in the Duchy of Bavaria during the mid-8th century.

Little is known about Alto; he is believed to have arrived in the region as a wandering Irish or Scottish monk,[1] and to have previously lived as a hermit near both Munich and Augsburg.

[2] A donation by King Pepin the Short gave Alto some wooded land on which to build his monastery.

[3] A Gospel lectionary made for Altomünster Abbey has a metal cover which was added to the manuscript in 1489, depicting one of Saint Alto's miracles.

[4] Alto's feast day is celebrated on 9 February.