Olga Selesnjowa ( Russian: Ольга Селезнёва), born June 7, 1975 in Qostanai) is a former Kazakh cross-country skier and biathlete.

Olga Selesnjowa was also active as a swimmer and gymnast at a national level.

A year later, further races followed in Norway in the lower-class FIS Cross-Country Continental Cup, before the Kazakh competed in her first international championship in Trondheim as part of the FIS Nordic World Ski Championships.

She made her international debut at the 2005 Biathlon European Championships in Novosibirsk, where she finished 15th in the individual, 18th in the sprint and 20th in the pursuit.

The Kazakh came 76th in the individual, 83rd in the sprint, and 19th in the relay alongside Jelena Dubok, Tatjana Masunina, and Anna Lebedeva.