Marianna Lymperta (Greek: Μαριάννα Λυμπερτά, born 25 June 1979)[1] is an Olympic and national-record holding swimmer from Greece.

She has won the bronze medal at the 2011 World Aquatics Championships, at the Open Water Swimming Women's 10 km event.

[2] She has also won the bronze medal at the 2010 European Aquatics Championships, at the Open Water Swimming Women's 5 km event.

[2] She has swum for Greece at the: At the 2010 European Championships, she set the Greek Records in the women's 800 and 1500 free (8:34.81 and 16:20.11).

At the 2012 Summer Olympics, she competed in the Women's marathon 10 kilometre, finishing in last place.