Onwumere audio^ⓘis a surname of Igbo origin in south eastern Nigeria.^{[citation needed]} It means “death caused it” or “this is what death has caused”.^{[citation needed]} Notable people with the surname include:

• Ngozi Onwumere (born 1992), American–Nigerian sprinter and bobsledder
• Sidney Onwubere (born 1993), Filipino-Nigerian basketball player
• Toby Onwumere (born 1990), Nigerian-born American actor