Sergius († c. 769) was archbishop of Ravenna from around 744 until his death c. 769.
The Venetians are mentioned twice in the biography of Sergius, archbishop of Ravenna (744–769, in the “Liber pontificalis ecclesiae Ravennatis”.
The events around the demise of the Exarchate of Ravenna only involved the Venetians marginally. It is nevertheless important to the history of Venice.