Christianity is the fourth-largest religion, at 0.4 percent. Roman Catholicism is the largest denomination among Bangladeshi Christians. Bengali Christians are spread across the country; while there are many Christians among minority ethnic groups in the Chittagong Hill Tracts (southeastern Bangladesh) and within the Garo tribe of Mymensingh (north-central Bangladesh). The country also has Protestant, Baptist, and Oriental Orthodox churches. Christmas is a public holiday.