Tahuna is a town and the capital of Sangihe Islands Regency in North Sulawesi province, Indonesia.

It stretches across the administrative districts (kecamatan) of Tahuna, Tahuna Timur and Tahuna Barat, with a combined population of 35,307 at the 2020 Census.

[2] Tahuna has a tropical rainforest climate (Af) with heavy to very heavy rainfall year-round.