Alanlı is a neighborhood in Derik District, in Mardin Province, Türkiye. Alanlı lies at 469 m above sea level, 14.6 km from the Mardin High mountains. It has 738 inhabitants. The nearest city is Derik, 21 km to the northeast. Among the landmarks around are Tell Halaf (43 km) and Kerküşti Höyük (1.5 km).