Merry Christmas wish for sis is a wonderful way to stay in touch with your sibling, especially as the holiday season approaches. Because your sister is your best friend and one of the most important people in your life, wishing her a Merry Christmas is the best gift you can give. Your sister deserves only the best, so look for a Merry Christmas Wish for Sister that she will adore. Your sister has always been an important part of your holiday celebrations, from your earliest Christmas memories to the present. Sharing your excitement with your sister as you waited to open presents was one of the best parts of Christmas morning when you were a kid.