In the 2012 indoor season, Filippidis again broke the Greek national record with a vault of 5.75 m, while in the 2012 IAAF World Indoor Championships in Istanbul he once again reached the final, taking 7th place. Later on that summer, he was again 7th at the final of the 2012 Summer Olympics in London. After the Games, he twice improved the Greek record (first to 5.76 m and then finally to 5.80 m).