Cruachan may refer to:

• Cruachan, Ireland, the ancient capital of the kingdom of Connachta in Ireland
• Croaghaun, a mountain on Achill island, County Mayo (Irish name: Cruachán)
• Cruachan (band), an Irish Celtic metal band

• Ben Cruachan, a Scottish mountain
  • Cruachan Dam A hydropower station at Ben Cruachan
• Cruachan, the name of a Shetland pony as mascot of the Argyll and Sutherland Highlanders (now of the Royal Regiment of Scotland)
• Cruachan! is the battle cry for Highland clans Campbell and MacIntyre

This disambiguation page lists articles associated with the title Cruachan.
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