Is Schengen Visa Valid for Visiting the United Kingdom?

No, a Schengen visa is not valid for visiting the United Kingdom. The UK is not part of the Schengen Area and has its own visa system. If you want to visit the UK, you must apply separately for a UK Standard Visitor Visa or another appropriate visa, depending on your purpose of travel.

A Schengen visa only allows travel within the 27 Schengen countries in Europe, but it does not grant entry to the UK.