Rhumsiki, also spelt Rumsiki and Roumsiki, is a village in the Far North Province of Cameroon.
Rhumsiki is located in the Mandara Mountains 55 km (34 mi) from Mokolo, and is located 3 km (2 mi) from the border with Michika LGA, Adamawa State, Nigeria. The village is similar to many others in northern Cameroon. The inhabitants, members of the Kapsiki ethnic group, live in small houses built from local stone and topped with thatched roofs; these homes are scattered throughout the village and surrounding valley. Nevertheless, Rhumsiki is one of Cameroon's most popular tourist attractions and "the most touristic place in northern Cameroon".