John I (exarch)John I (died 615) was Exarch of Ravenna (611–615).
John was made Exarch of Ravenna in 611, to replace Smaragdus. He seems to have avoided war with the Lombards throughout his 4 year reign from 611 to 615. In 615 he was killed along with a number of other officials. The Liber Pontificalis mentions that one of the first acts of his successor, Eleutherius, was to kill the persons accused of playing a role in the Exarch John's death.