I have a stutter. Can I be a soldier?

It should be possible. Being a soldier is a physical examination. One of the physical examinations is good health, with no scars or tattoos on the surface. Pronunciation is not included in the physical examination. Although stuttering as a soldier does not affect you, there is no guarantee that your comrades in the army will not laugh at you, or that you will be excluded, so I suggest you cure your stuttering. There are many ways to search online.