"Djimon Hounsou and Kimora Lee Simmons have officially separated after 5 1/2 years," the actor's representative told People.com Wednesday.
"Though never married, they have one child together, Kenzo Lee Hounsou, who is 3 1/2 years old."
Hounsou has appeared in the films "Blood Diamond," "In America" and "Amistad."
Simmons is the president and creative director for JustFab, a fashion styling and retail service.
Senate Democrats to pull all-nighter on climate change
Susan Sarandon 'very excited' about daughter's pregnancy