Riikka Sarasoja-Lilja (born February 23, 1982, in Lempäälä, Pirkanmaa) is a Finnish cross-country skier who has competed since 2001.

At the FIS Nordic World Ski Championships 2009 in Liberec, Sarasoja finished 21st in the individual sprint, 24th in the 7.5 km + 7.5 km double pursuit, and 25th in the 30 km events.

Her best World Cup finish was sixth in a sprint event in Finland in 2009.

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

[1] This biographical article relating to Finnish cross-country skiing is a stub.