Natascha Ragosina (nee Natalia Yurievna Ragozina) is a professional Russian boxer. Ragosina is currently undefeated as the top female super middleweight in the world. Her impressive boxing record includes 22 matches with 22 wins. She won 13 of those fights with a KO.

Ragosina was born in Kazakhstan and resides in Germany. As of 2010, she holds all of the major female super middleweight titles. In 2009, she added two more, the Women's International Boxing Federation heavyweight and the World Boxing Federation heavyweight, when she beat the heavyweight world champion Pamela London. Despite London weighing 60 pounds heavier than Ragosina, she had a knockout victory.

Ragosina's professional boxing career began in 2004 after she had become a kickboxing and then boxing world champion as an amateur. She is also a single mom with a nine-year-old son and recently wrote a book titled, Knockout from a Blonde and starred in an action flick.