Yes. There are two names to be aware of on your account - your username and your legal name.
Your username can be updated anytime in your account settings. See How do I update my username? for steps.
Your legal name is stored in the Co-op Membership Info section of your settings. This is the name used for your official co-op membership records - it's required by law and is never shown publicly. You can update it directly in your settings under Co-op Membership Info.
If you're having trouble updating either, contact us at info@subvert.fm.