Eleni Donta-Bali (; born June 17, 1980 in Lamia) is a Greek marathon runner. Donta represented Greece at the 2008 Summer Olympics in Beijing, where she competed for the women's marathon. She finished the race in sixtieth place by eighteen seconds ahead of Mexico's Karina Pérez and Colombia's Bertha Sánchez, with a time of 2:46:44.