For a bone-in shank or butt portion ham figure about 3/4 pound person. So, technically, you'd need a 7 1/2 pound ham to feed 10 people but personally, I'd go with a 10-pounder to ensure plenty of leftovers. I've got you covered with some leftover ham recipe inspiration with this Ham Salad, Easy Ham and Cheese Stuffed Crescents, White Bean and Ham Soup, and Ham and Cheese Sliders. Stay tuned for an awesome leftover ham breakfast recipe coming very soon.