Blåhøa is a mountain in Oppdal Municipality in Trøndelag county, Norway. It is the highest mountain at the northeastern side of the Trollheimen mountain range. The mountain is located in the northwestern part of Oppdal, about north of the lake Gjevillvatnet, about west of the village of Nerskogen (in Rennebu Municipality), and about northwest of the village of Vognillan.
The tall mountain has a topographic prominence of . The Speilsalen glacial tunnel was located about northeast of the peak.
Name The first element is which means "blue", and the last element is which means a "large and round mountain".
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