Hundreds of people dressed up in red and white Santa Claus costumes for the seventh annual charity run in the Greek capital.
They ran a 2-kilometre course around Athens Olympic Athletic Centre.
For the first time, organisers provided children with outfits of the beloved Christmas figure.
The entry fee is €12 euros each, but most of the money raised comes from corporate sponsorships.
This year’s proceeds will go to the Make-A-Wish Greece foundation to grant the wishes of critically ill children.
READ MORE: Elves and Nutcrackers: The Christmas Villages of Greece.