Mali Graben () is a creek and a natural branch of the Gradaà ¡ÃÂica River in southwest Ljubljana. It flows south of and parallel to the Gradaà ¡ÃÂica and is the largest affluent of the Ljubljanica River. It is also known as Strà ¾en (literally, 'thalweg') and Mala voda ('Little Creek').
The creek is a natural channel. It splits from the Gradaà ¡ÃÂica not far from Bokalce Castle, then flows across the southern part of the Murgle residential district and joins the Ljubljanica from the left side near the Gruber Canal. Most of the water from the Gradaà ¡ÃÂica is diverted into Mali Graben, helping to alleviate flooding of the Trnovo District in Ljubljana.