Mabel Gardiner Hubbard (November 25, 1857 – January 3, 1923), was an American businesswoman, and the daughter of Boston lawyer Gardiner Greene Hubbard.
As the wife of Alexander Graham Bell, inventor of the first practical telephone, she took the married name Mabel Bell.From the time of Mabel's courtship with Graham Bell in 1873, until his death in 1922, Mabel became and remained the most significant influence in his life.
Folklore held that Bell undertook telecommunication experiments in an attempt to restore her hearing which had been destroyed by disease close to her fifth birthday, leaving her completely deaf for the remainder of her life.