If I am married can my spouse legally open an account in my name without my constent

Question

If I am married can my spouse legally open an account in my name without my constent

Answer

The answer is probably going to be no, but since you failed to tell us what kind of account or any other facts it is not a certainty.

Answer

I agree, the short answer is NO. Depending on the type of account, you may be added an authorized user - which does not give you responsibility for the account.

Answer

He can make you an authorized user but can't actually add you to an account without your signature or other consent.