The actress, who has recently been romantically linked to sports entrepreneur Franck Raharinosy, says she spends all her time with her pooch and hasn't got time for a man.
When asked what she is looking for in a guy, Seyfried told US OK! magazine: 'Oh, nothing at all right now. My mind is on my dog. He is my best friend. I love him. I think of him and only him. I don't like to be out late because I just want to go home to my dog.'
The 25-year-old, who recently attended the US Open tennis tournament in New York with Franck, insists they are just friends.
She added: 'Oh I'm friends with him. He's a good, smart guy. And he's fun. He loves tennis, he loves ping-pong. They all do. They're all really into that sport. It's fun.'