How do I officially name a star?

How does one officially name a star? Is there a specific process or organization that one must go through to have a star named in their honor or for a particular reason? I'm curious about the logistics behind naming a celestial body and whether it's a straightforward process or if there are certain regulations or restrictions in place. Additionally, I'd like to know if there's a cost associated with naming a star and if it's something that can be done by an individual or if it requires a group effort.