Tilia nasczokinii Stepanov, commonly known as Nasczokin's lime or Nasczokin's linden, is a rare deciduous tree or shrub endemic to Siberia in Russia.

The tree grows to 20 m tall, its bark pale grey and fissured.

The tiny yellowish, almost white flowers of 0.8–1 cm in diameter appear in clusters of 1–3.

[1] The habitat of Tilia nasczokinii is coniferous forests of Pinus sylvestris.

[3] Tilia nasczokinii is considered a threatened species and included in the Red Book of Krasnoyarsk Krai.