Svarthøi is a mountain in Lesja Municipality in Innlandet county, Norway. The 1,883-metre (6,178 ft) tall mountain lies about 10 kilometres (6.2 mi) north of the village of Lesjaskog. The mountain is surrounded by several other mountains including Storhøi and Blåhøi which are about 6 kilometres (3.7 mi) to the southeast and Merratind and Vangshøi which are about 11 kilometres (6.8 mi) to the southeast.