Is it possible to apply for a third master's degree given that I already have double bachelors and double masters degrees in UK for a Bachelor's?

Yes, you can apply for a third master's degree in the UK, even if you already have multiple bachelor's and master's degrees. UK universities generally do not limit the number of master's degrees you can pursue.

Admissions committees will expect you to clearly explain how this additional degree aligns with your career goals and adds value to your qualifications. Highlighting your extensive work experience and providing a strong rationale for further study will strengthen your application.

Some universities may require you to show clear academic progression and how this degree supports your professional objectives.