Sumiko (written: すみこ, 純子, 澄子, 寿美子, 須美子, スミ子 or すみ子) is a feminine Japanese given name. Notable people with the name include:
Princess Sumiko (1829–1881) Japanese princess , Japanese actress Sumiko Gutiérrez (born 1988), Mexican professional footballer , Japanese film director Sumiko Hennessy (born 1937), Japanese-American social worker and academic , Japanese actress Sumiko Inaba (born 1991), American mixed martial artist , Japanese psychologist, magazine editor and academic , Japanese badminton player , Japanese actress and dancer , Japanese actress , Japanese singer and actress , Japanese voice actress , Japanese economist , Japanese sprinter , Japanese cross-country skier
See also 4100 Sumiko, a main-belt asteroid