Ynysforgan is a village in Swansea, Glamorgan, Wales. It lies just off Junction 45 of the M4 motorway, geographically between Morriston and Ynystawe. The origins of its name are not known for certain but ynys is Welsh for a river-meadow (i.e., an "island" – the main meaning of ynys – in otherwise marshier ground beside a river) and Forgan is a mutation of the name Morgan; a reasonable translation of the name would therefore be Morgan's Meadow. The River Tawe flows past Ynysforgan so it is not unreasonable to speculate that it is the river in question.