Christmas in Japan is a relatively new holiday, having only been celebrated for about 100 years. It's a much more commercialized holiday in Japan than it is in many other countries, with many families exchanging gifts and enjoying traditional Christmas meals. Some of the most popular Christmas traditions in Japan include decorating Christmas trees, singing Christmas carols, and attending church services. Many families also have their own unique Christmas traditions, such as cooking special dishes or exchanging handmade gifts.