| River Oykel | |
|---|---|
 Lower Oykel between Brae and Tuiteam house, halfway between Oykel Bridge and Invercassley. The Tutim Burn can just be seen. | |
 | |
| Location | |
| Country | Scotland |
| Physical characteristics | |
| Source | |
| • location | Ben More Assynt, Sutherland |
| Mouth | |
• location | Kyle of Sutherland / Dornoch Firth |
| Basin size | 355 km2 (137 sq mi) |
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The River Oykel (Scottish Gaelic: Òiceall or Abhainn Òiceall, pronounced [ˈa.ɪɲ ˈɔːçkʲəl̪ˠ]) is a major river in northern Scotland that is famous for its salmon fishing. It rises on Ben More Assynt, a few miles from Ullapool on the west coast of Scotland, and drains into the North Sea via the Kyle of Sutherland. Traditionally it has marked the boundary between Ross (parish of Kincardine) to the south and Sutherland (parish of Creich) to the north.