He's got a mixed family background: his paternal grandparents were Palestinian Christians who immigrated from Jerusalem and Bethlehem, but his dad converted to Islam later, became an imam, and even built mosques there.
But Bukele's been clear: he doesn't follow any organized religion or "liturgy." He says he believes in God, in Jesus Christ, and in the Bible—like, he's quoted that exact line multiple times, including in interviews and recent speeches where he credits God for El Salvador's turnaround on crime. In twenty-twenty-six, he's still leaning into Christian-sounding faith talk, like at the National Prayer Breakfast, calling stuff a "miracle" from prayer.
More from Grok:
Pretty well mimics my take on him - unclear but seems Christian leaning.