Karolina Kowalkiewicz is a Polish mixed martial artist and former professional kickboxer who competes in the strawweight division of the Ultimate Fighting Championship (UFC). She began her MMA career in 2011 and quickly rose to fame, becoming the first Polish female to win a UFC bout in 2015.

Kowalkiewicz is a well-rounded fighter, with a strong kickboxing background and ground game. She is known for her aggressive striking style and is equally proficient in grappling. She is currently ranked #5 in the UFC's official strawweight rankings and has earned a reputation as one of the top contenders in the division.

Kowalkiewicz is a two-time Professional Fighters League kickboxing champion and holds a notable win over UFC Strawweight champion Rose Namajunas. She is also a multiple-time WKF World Cup and Polish National Champion in kickboxing.