No.
I want to use my name, but with a different surname to separate my private and professional life. And to be honest, my full name looks too childish for business. There's also a tons of people with names that are similar which makes it harder to stand out.
Can I register my pen name as a business name and use it as my name as well?
Because the process to legally modify my name is endless in Canada. It can take up to a year.