Although not all of you will celebrate it, I wish all of you (a):

Frohe Weihnachten!
Schöni Wiehnachte!
Merry Christmas!
God Jul!
聖誕快樂 - Shèngdàn kuàilè!
メリークリスマス! - Merii Kurisumasu!
성탄절 잘 보내요! - seongtanjeol jal bonaeyo!
Feliz Navidad!
Buon Natale!
Joyeux Noël!
Vrolijk kerstfeest!
Giáng Sinh vui vẻ!
Veselé Vánoce!
Feliz Natal!
Wesołych Świąt!
С рождеством!!
Hyvää joulua!
Sretan Božić!
Veselé Vánoce!
Kala Christouyenna!
Boldog karácsonyt!
Mutlu Noeller!

View attached image.