Ông Trời (Chữ Nôm: 翁𡗶; "Old Man Sky/Heaven" / "Grandfather Sky/Heaven") commonly referred to as Trời (𡗶; "Sky/Heaven"); Ông Thiên (翁天); also called Ngọc Hoàng Thượng Đế (Chữ Hán: 玉皇上帝; "Highest Deity the Jade Emperor"), referred to as Ngọc Hoàng (玉皇; "Jade Emperor"), or Thượng đế (Chữ Hán: 上帝; "Highest Deity"), Ngọc Đế (玉帝), Ngọc Hoàng Đại Đế (玉皇大帝), Hạo Thiên Đế (昊天帝) is the king of the gods in mythology and Vietnamese folk religion. In the Đạo Mẫu, he is called the Vua Cha Ngọc Hoàng (𢂜吒玉皇; "Monarchial Father the Ngọc Hoàng). In Vietnamese Buddhism, he is frequently identified with Śakra.