The 2025 Old Dominion Monarchs football team represented Old Dominion University in the Sun Belt Conference's East Division during the 2025 NCAA Division I FBS football season. The Monarchs were led by Ricky Rahne in his sixth year as the head coach. The Monarchs played their home games at S.B. Ballard Stadium, located in Norfolk, Virginia.
In the Sun Belt preseason coaches' poll, the Monarchs were picked to finish fifth place in the East division.
Offensive lineman Zach Barlev and linebacker Jason Henderson was awarded to be in the preseason All-Sun Belt first team offense and defense for the fourth year in a row. Defensive lineman Kris Trinidad and linebacker Koa Naotala were named to the second team.
The football schedule was announced on February 28, 2025.