Arsenio Duodo was a member of the Venetian patrician Duodo family.

Arsenio Duodo married Francesca Gabriel, daughter of Giovanni Gabriel in 1415. He was Patron for the Convoy of Alexandria in 1412 and again in 1419. The value of the cargo of the three ships of the latter convoy was 80,000 ducats. Duodo was patron of the Convoy of Flanders in 1422, and the Convoy of Aigues Mortes