Big Ben can be:

• (Big Ben) the nickname of the Great Bell of Westminster, the hour bell of the Great Clock, hanging in the Clock Tower of the Palace of Westminster, the home of the Houses of Parliament in the United Kingdom.
• a Canadian show jumping horse,
• a massif by that name on Heard Island,
• a brand of chewing tobacco in the 1930s, and
• a nickname of Ben Roethlisberger, the starting quarterback of the Pittsburgh Steelers as of 2004.
• nickname of Ben Dunkelman