Can a name be a pronoun?

No, a name is a noun; the name of a specific person, place, or thing is a proper noun.

A pronoun is a Word that takes the place of a noun in a sentence. We can use a pronoun instead of a noun. When we use pronouns, we don't have to repeat the same noun every time we refer to it, and pronouns help sentences flow more smoothly and make them easier to say.

Examples:

Mary and John bought a new house. Mary and John have asked for volunteers to help paint Mary and John's new house.

OR, using pronouns:

Mary and John bought a new house. They have asked for volunteers to help paint their new house.