What the name for someone who gossips?

Slander is knowingly spreading false information about a person to others through one's Words. Malicious gossip would possibly fall under the definition of slander. However, just because someone says something that hurts your feelings, doesn't mean that the person has slandered you. If you believe that the malicious gossip against you rises to the level of slander, you should see a personal injury attorney in your area.