Tatyana Aleksandrovna Sychova (née Mekhanoshina, ; born 29 November 1957) is a Georgian long-distance runner. She twice represented the Soviet Union at the IAAF World Cross Country Championships, finishing fifth at the 1981 race and 45th at the 1980 race. Both times she shared in the team gold medals, running alongside teammates including Yelena Sipatova, Tatyana Sychova, Svetlana Ulmasova, Tatyana Pozdnyakova, Irina Bondarchuk, Giana Romanova, Yelena Chernysheva, and Raisa Smekhnova. She also ran at the 1981 European Cup, placing fourth in the 3000 metres.