Helena "Lea" Nordheim (1 August 1903 – 2 July 1943) was a Dutch gymnast.
She won the gold medal as a member of the Dutch gymnastics team at the 1928 Summer Olympics in her native Amsterdam.Nordheim was born in Amsterdam and died in the Sobibor extermination camp.
As a Jew, she was sent to Westerbork concentration camp in June 1943.
Shortly after, Nordheim was deported to SobibĂłr where she was murdered, together with her husband Abraham and their ten-year-old daughter Rebbecca.