Who can register a .io domain name? Tara Kelly Updated August 09, 2017 08:45 Follow Anyone, anywhere can register a .io domain name.Registrations are accepted quickly and efficiently. Related articles How can I register a .io domain? Getting Started with Blacknight Web Hosting, Email & FTP What do I need to register my .ie domain? How can I update my IE domain's nameservers? Comments 0 comments Article is closed for comments.