Aino-Kaisa Saarinen (born February 1, 1979 in Hollola, Päijänne Tavastia) is a Finnish cross country skier who has competed since 1998. Competing in two Winter Olympics, she won three bronze medals with one in 2006 (Team sprint) and two in 2010 (30 km, 4 x 5 km). Saarinen finished second in the 2008/2009 Tour De Ski behind Virpi Kuitunen.