Mirja Lehtonen (October 19, 1942, Uurainen, Central Finland – August 25, 2009) was a cross-country skier from Finland who competed during the early 1960s.
She was born in Kyynämöinen.
She won two medals at the 1964 Winter Olympics in Innsbruck with a silver in the 5 km and a bronze in the 3 x 5 km.
Lehtonen also won a bronze medal in the 3 x 5 km at the 1962 FIS Nordic World Ski Championships in Zakopane.