In law, there are two types of person - legal and natural. In some jurisdictions the term "legal person" is replaced by the expression "juridical person."

A natural person is a human individual.
A legal person is what has become widely termed an "entity" - that is some form of business structure where that structure is created or recognised by statute. A company, partnership or any one of many different forms falling between those two are legal persons.

When the word "person" is used in the context of "offences against the person" it always means a natural person i.e. a sentient human being.