The 37-year-old Freeney had three sacks in four games with the Seahawks.
The seven-time Pro Bowler was signed last month after Seattle lost pass rusher Cliff Avril to a neck injury.
All seven of Freeney's Pro Bowl appearances came in his 11 seasons with the Indianapolis Colts from 2002-2012. He has also played for the San Diego Chargers (2013-14), Arizona Cardinals (2015) and Atlanta Falcons (2016) in addition to his short stint in Seattle.
The Seahawks didn't immediately announce a corresponding roster move.
Seattle also released safety Alex Carter from its practice squad.