Generally no, there’s no such thing as region locking for most phones assuming you bought the phone outright and not through a carrier or payment plan. You’re primarily going to be limited by hardware support for frequencies and standards.

You can have a carrier lock, which theoretically is used to make sure you honor your promotion or payment terms. There are still minor differences depending on whether you have an international or regional release, but I’ve never heard regional SIM locking for an unlocked phone.