The Frøya Tunnel (Norwegian: Frøyatunnelen) is an undersea tunnel connecting Frøya Municipality and Hitra Municipality in Trøndelag county, Norway.

The tunnel, on county road 714, is located about 4 kilometres (2.5 mi) south of the village of Sistranda on the island of Frøya.

It begins in the village of Hammarvika on the island of Frøya and travels south under the Frøyfjorden to the island of Dolmøya in Hitra Municipality.

Dolmøya is also connected to the island of Hitra by a short bridge.

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