The 32-year old Frenchman joins the Revs and will take one of their eight international roster spots but per MLS and club policy, terms of the deal were not released.
Revs vice president of player personnel Michael Burns said Domi was a great addition to the club's playing roster.
"Didier brings extensive experience playing at the top levels throughout Europe and he will add leadership and composure to our backline," he said.
"We're looking forward to getting Didier in to camp and integrating him into our team."
Domi has spent his entire career in Europe, kicking off his career with homeland club Paris Saint-Germain in 1994 where he stayed until 1999.
He then moved to England, joining Newcastle for two-and-a-half seasons before returning to PSG. During the 2003/04 season he had a loan spell with Leeds United before moving to Spain to join Espanyol for two years and then on to Greek Super League outfit Olympiakos where he has been since 2006.