No, Big Ben is not part of Westminster Abbey. Big Ben is actually the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London. The name is commonly used to refer to both the clock and the clock tower, which was renamed the Elizabeth Tower in 2012 in honor of Queen Elizabeth II’s Diamond Jubilee.
On the other hand, Westminster Abbey is a separate and distinct building located nearby. It is a historic church known for its Gothic architecture and has been the site of many royal ceremonies, including coronations and weddings.
While both Big Ben and Westminster Abbey are iconic landmarks in London and are located close to each other, they serve different purposes and are part of different structures. Big Ben is part of the governmental seat of the UK, while Westminster Abbey serves a religious and historical function.