Mona-Liisa Nousiainen (née Malvalehto; 20 July 1983 – 29 July 2019) was a Finnish cross-country skier. He competed in the World Cup between 2002 and 2018. Nousiainen was born in Rovaniemi, Finland. In 1999, she won the Finnish Championship in accordion playing. She studied at the Sibelius Academy.