Joseph Philo Bradley was an American jurist who served as an associate justice of the Supreme Court of the United States from 1870 to 1892. He was also a member of the Electoral Commission that decided the disputed 1876 United States presidential election.

An associate justice of the Supreme Court of the United States is a justice of the Supreme Court of the United States, other than the chief justice of the United States. The number of associate justices is eight, as set by the Judiciary Act of 1869.