Agios Georgios is a small church in the Anafiotika district of Plaka, Athens. It was built by Greek builders from the island of Anafi, who were brought over to Athens in the early 1840s. The church has a quaint and rural appeal, with a flowered courtyard and whitewashed facade. It is situated directly under the Acropolis and is a single-naved barrel-vaulted building. Inside, there is nothing remarkable to see. The church is under the aegis of the church of Agios Nikolaos Rangavas and is open only on the name day of the church and on special occasions.

St. George is widely regarded as a Christian martyr and is venerated as a saint by the Eastern Orthodox, Oriental Orthodox, and Catholic Churches. He was a soldier in the Roman army and was executed for his refusal to renounce his Christian faith. However, he is considered a symbol of courage and bravery and is honoured on April 23rd by the Orthodox Church. The story of St. George and the dragon is a popular legend associated with him, which portrays him as a rescuer of a town threatened by a dragon.

Some locals believe that the spirit of the saint encouraged Konstantinos Koukidis, a Greek Evzone who was on flag guard duty at the Acropolis in Athens on April 27th 1941, during the beginning of the Axis occupation of Greece during World War II. According to legend, when the first Germans climbed the Acropolis, an officer ordered Koukidis to surrender the Greek flag and raise the Nazi swastika flag in its place. However, Koukidis supposedly chose to remain loyal to his duty and wrapped the flag around his body before jumping off the Acropolis rock to his death. Despite this story being a famous legend and inspiring to many, there is no specific documentary evidence to support it. Nevertheless, a commemorative plaque near the site marks the event.