Maduagwu is a surname found mainly in Nigeria. Notable people with the surname include:
Emmanuel Ndubisi Maduagwu (born 1947), Nigerian biochemist Rita Maduagwu, Nigerian politician and lawyer Somtochukwu Maduagwu (1995–2025), Nigerian lawyer, model, and news anchor
See also Herbie Hide (born 1971 as Herbert Okechukwu Maduagwu), Nigerian-born British professional boxer