Nyamninia is a village in the Yala division of Siaya County, Kenya. Situated approximately 30 miles from Kisumu city, Nyamninia is home to the 100 kilowatts medium wave radio transmitters set up by Voice of Kenya (VoK); now renamed Kenya Broadcastic Corporation (KBC). 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.