Is there a way to password protect one of our forms?

I see that you want to protect one of your forms with a password if I understand you correctly.

Your form is already very secure behind your jotform account so no one will be able to access it except you and any sub-users you give permission to view and edit the form.

Do you maybe mean from accessing it online perhaps?

You may find this useful since it's the only alternative option to protecting your forms compared to a password since we do not allow password fields to be used on forms.

http://www.jotform.com/help/306-Allow-jotform-to-be-filled-out-only-by-those-with-a-special-link