Irungu is a surname. Notable people with the surname include:
Bernard Ngumba Irungu (born 1976), Kenyan amateur boxer Joshua Irungu (born 1970), Kenyan politician and community development specialist Lorna Irungu (1970–2021), Kenyan television presenter Polly Irungu, Kenyan-American photographer and journalist
See also Irungu Kang'ata, Kenyan politician