Jesse Minter has agreed to return to Baltimore in the top job, having previously spent four years as an assistant coach with the Ravens under John Harbaugh.
Minter then worked in the college game before returning to the NFL as the Los Angeles Chargers defensive co-ordinator for the past two seasons.
“This is an organisation whose values, culture and tradition of excellence reflect everything I believe about the game of football and how it should be played,” said the 42-year-old.
Ravens owner Steve Bisciotti added: “He clearly understands the values, high expectations and history of the Ravens, and he has a great vision for the future.”
Harbaugh had been in charge of the Ravens for 18 years so Minter will be just the fourth head coach in the team’s 31-year history.
He also had a second interview with the Las Vegas Raiders and cancelled an interview with the Cleveland Browns.