Kaisa Leena Mäkäräinen (born 11 January 1983) is a Finnish former world-champion and 3-time world-cup-winning biathlete, who currently competes for Kontiolahden Urheilijat.

During the 2007-08 Biathlon World Cup, she made it to the podium twice, the first time when she placed second in the sprint at Pokljuka, Slovenia and third in the pursuit at Ruhpolding, Germany.

During the 2008–09 Biathlon World Cup, she has steadily risen in the rankings and on she placed second during the pursuit event[3] and third in the mass start after Iourieva and Jonsson[4] at Antholz.

She made a strong start at the opening event in Östersund, where Mäkäräinen won her first ever World Cup victory in the sprint.

[7] Mäkäräinen's flawless shooting and fourth-fastest course time secured her career-first gold medal in the pursuit the following day.

[10] Despite her not-so-good performance in the individual competition and being tied for the overall lead by Helena Ekholm, Mäkäräinen managed to stay on top of the Overall World Cup classification until the very end of the season.

In January 2021, she notably won a silver medal in a 10 km freestyle competition, with only a few of Finland's current World Cup skiers absent from the event.