Tatjana Lematschko (March 16, 1948 – May 17, 2020) was a Soviet-born Swiss chess player, She was born in Moscow,[1] but lived in Bulgaria for several years.

She won both the Women's Bulgarian Chess Championship and Swiss Chess Championship several times.

At the 27th Chess Olympiad she won a medal for the best performance on no.

WGM Tatjana Lematschko died in Zurich, aged 72.

This biographical article relating to a Russian chess figure is a stub.