This potbellied creature has the body of a man and the head of a crazed boar. Large tusks jut from his upper jaw.
5e SRD
Lycanthropes who gain full control of their transformations quickly, transforming between human and large wild boar forms
Wereboars gain full control of their transformations quickly, needing only about a year to achieve mastery. They have just two forms, that of a human and that of a particularly large wild boar or sow.
In human form they tend to have "piggish" features such as gluttony and cunning, as well as an often strong physical resemblance to swine. Wereboars usually dislike both hard work and responsibility, but they are bullies who enjoy being in charge. They are easily bored with mundane things but are excited by violence (whether witnessing it or participating in it).
Basic Fantasy Role-Playing Game
Shapechangers with a human and an animal form.
OSE
Semi-intelligent and irascible
A wereboar has a foul tempered disposition in either form and will attack in a frenzy. It is found in heavily wooded areas, but rarely with normal boars (15% chance of 1d4 boars that will attack on direction by the lycanthrope).
OSRIC