Katrin Šmigun (born 21 October 1979) is an Estonian cross-country skier.

She competed at the 1998 Winter Olympics and the 2002 Winter Olympics.

Her sister is cross-country skier Kristina Šmigun-Vähi.

[1] All results are sourced from the International Ski Federation (FIS).

[2] This biographical article relating to Estonian cross-country skiing is a stub.