Can a boar raccoon be neutered?

There is no such thing as a "boar raccoon". It's likely you're referring to a male raccoon, which is sometimes called a "boar" in colloquial language.

Yes, male raccoons can be neutered. This is a common procedure for raccoons kept as pets, as it can help reduce aggression, wandering tendencies, and the urge to spray urine.

It's important to note that neutering a raccoon should only be done by a qualified veterinarian who is experienced with exotic animals.