The River Lossie (Scottish Gaelic: Uisge Losaidh) is a river in north east Scotland. Ptolemy (c.90 – c.168), the Greco / Roman geographer, named it as ost. Loxa Fl. The river originates in the hills above Dallas, in Moray, and has its source 400 metres above sea-level. It enters the sea at Lossiemouth on the Moray Firth. By the time it moves through Elgin its rate of flow, in normal conditions, is best described as very slow.