Nyamninia is a village in the Gem Location, Yala division of Siaya County, Kenya.
It was the birthplace of the legendary Gem clan chief, Odera Kang'o who started a rice plantation scheme in the area about one hundred years ago.
The Gem chief was responsible for construction the numerous schools in the region before his enforced exile in 1915, to Kampala, Uganda by the British colonialists.
Tourists attractions include Gunda Odera Kang’o ( the place Odera Kang’o presumably had his administrative base and home), Aora Msango, (a spring that keeps sprinkling even in dry seasons) Maseno equator crossing point (20 km away) and Ndano falls at River Yala.
The third largest city of Kenya, Kisumu, is 50 km away and easily reachable through Busia-Kisumu highway.