The 46-year-old actor, who is currently single, admits he wants to have more children but would not do it without a partner, according to Men's Journal magazine.
"I'd like to have eight (kids) running around. A gaggle, a little clan. But at this point, that's not in my future. It takes two. Doing it alone is not fun.
"You want to share the experience. You kind of want a partner. I've done so many amazing, cool things in my life -- but I think as we get older, there's more value in doing something with somebody," Renner said.