Can you date someone with the same name as your dad/brother?

Not necessarily dad/brother... but if your partner shared the same name as someone in your immediate family, would it freak you out? I just started talking to a guy who shares my dad's name and for some reason I can't shake it. He seems great — totally good guy, no red flags that I'm seeing — but his name! Is my dad's! Gah, am I being unreasonable?