Proper noun
A river in Glen Douglas, Argyll and Bute council area, Scotland, which flows into Loch Lomond.
A river in Argyll and Bute council area which flows into Loch Fyne.
A river in South Lanarkshire council area, Scotland, which joins the Clyde. Douglas in South Lanarkshire is also on this river.
A village in South Lanarkshire council area named after the river (OS grid ref NS8736).
Source: en.wiktionary.org