John S. McCain

People

• John S. McCain Sr., United States Navy admiral
• John S. McCain Jr., United States Navy admiral and son of John S. McCain Sr.
• John S. McCain III, United States Navy captain, American statesman, politician, and son of John S. McCain Jr.

Ships

• , a U.S. Navy ship name
• *, a Mitscher-class destroyer in the United States Navy from 1953 to 1978
• *, an Arleigh Burke-class destroyer in the United States Navy since 1994