Lena Sandin (born 8 June 1961) is a former professional tennis player from Sweden.

Sandin won the girls' singles title at the 1979 French Open, with a win in the final over American Mary-Lou Piatek.

She represented the Sweden Fed Cup team in a total of six ties, the first in 1979.

This included the quarter-final loss to Australia in 1980, where she gave Sweden a winning start by beating Dianne Fromholtz in the opening singles rubber.

[2] She won a doubles title at Hamburg in 1982, partnering countrywoman Elisabeth Ekblom.