Maybe you want to use an account with a different name (email address), or maybe you have two accounts, and want all blogs under one account.

 

The reason why the blog is owned by the wrong account is not an issue.  What is the issue is how you transfer the blog to the other account.

 

Neither deleting the blog, nor deleting the owning account, will help you in the slightest.  Doing either will simply require you to reverse what you just did, possibly involving help from Blogger Support and use of the Blogger Contact Us form.

 

The only way to transfer a blog to another account is to use the Settings - Permissions wizard, carefully.  In extreme cases, you will first have to have a deleted account restored by Blogger, not recreated by you.  There is a difference between the two, and it's functional, not semantic.

 

Note that you may, personally, perform some or all of these steps. Some steps may be performed by another person while you observe, or distant from you, at your discretion.  If two people are involved here, be sure that both you and the other person have read this procedure and understand all steps.

1. If the new owner isn't already a blog member
   1. Login to the blog, using an account that currently has administrative access. From Settings - Permissions, add a new blog member, using a suitable email address used by the person being given access.
   2. Login to Google, under the email account targeted in step 1-1. Open the email received, and accept membership, using any valid Google account. Or setup a new Google account, if necessary. Note that the email account used initially, and the Google account that's used for accepting membership, may, or may not, be the same.
2. Login to the blog, using an account that currently has administrative access. From Settings - Permissions, make the new member an administrator. Be careful, and only add administrators who can perform reliably.
3. If you're transferring ownership, not adding an administrator
   1. Login to the blog, using the account that was just given administrative access. From Settings - Permissions, remove the old account.  Using the account that was just added, to remove the old account, assures you that the account just added now has administrative authority.
      

    

If you're doing this in preparation to switching your Blogger, GMail, or other email account, do not discontinue the current account until you have executed, and tested, step 2.  Better safe than sorry, here.

Remember that you can only login to one Google account at a time, from any single computer / browser. If you have other abilities setup on the current Google account, you'll be constantly logging off and onto each account, as you switch back and forth.

Also, remember that Google authenticates using one account, for multiple tasks (Blogger, Google Apps, Google Mail, and others), using cookies. Be sure to clear cache and cookies (both cache and cookies, in this case), at the end of the procedure above. If you use one computer / browser for all steps, you'll be logging off one account and onto another; in that case, you will want to clear cache and cookies after each step. Take this process slowly and carefully.

 

And now that the blog has a new owner, make sure that the new owner knows to keep both the account name / password, and the email address, current and remembered.