Lill Maria Kotka, is a Swedish athlete specialized in ultrarunning. Her major claim to fame is winning the 101 km Ultra-Trail Courmayeur-Champex-Chamonix (CCC) in Chamonix, France, in 2016 by a margin of almost half an hour, and the 121 km Ultra-Trail Sur les Traces des Ducs de Savoie (TDS) in the same location, in 2017 by almost two hours and a half, improving the previous course record from 2015 by 46 minutes. Kotka is a member of the Swedish National Team in ultratrail. She participated in the 2015 IAU Trail World Championships, placing 8th. For a living she works as a nutritionist. In 2018 Kotka together with fellow athletes Ida Nilsson and Emelie Forsberg started Moonvalley, an online shop dedicated to organic energy bars and sports drinks.