What is what does mutual friends mean on facebook?

Mutual friends on Facebook refer to those individuals who are friends with two or more people who have a Facebook account. For example, if John is friends with Mary and Mary is friends with Jane, then John and Jane are mutual friends. Mutual friends are displayed on Facebook when a user views someone's profile. It is a great way to know if you share any common friends with the person you are connecting with on Facebook. Mutual friends can also be helpful in finding new people to connect with or to learn more about someone you may know.