MerciecaMercieca is a surname. Notable people with the surname include:Arturo Mercieca, Maltese judgeGrazio Mercieca, Maltese judgeJoseph Mercieca, Maltese Roman Catholic archbishopSilvio Mercieca, Maltese architectTamra Mercieca, Australian author and therapistJennifer Mercieca, American rhetorical scholarAlain Mercieca, Canadian video game writer