I hope this catches you before you go in. The Majority of people don't care that you stutter. They care that you care you stutter. You stutter, you can't hide it. Just be honest. Say you are nervous about the interview because you stutter and say you know you can do the job regardless of the stutter. They'll appreciate the sincerity. And I can all but guarantee after they've been through all the other applicants. They'll have a clear positive memory of you. Let us know how it goes.