Iraklis’s crest has changed through times. The original club logo was a capital H (ETA), the first letter of the word Iraklis (Ηρακλής) in Greek, surrounded by a circle.
After the 2000 takeover of the club by Evangelos Mytilinaios, the logo was changed once again to a “modern” looking one.
During the 2008-2009 season the club used a special logo, created especially for its centenary.
The crest that is now used depicts the demigod Heracles resting upon his club, a scene inspired by Farnese Hercules statue, itself a copy of a statue crafted by Lysippos in the fourth century BC.