Relations between the two people date back from the antiquity and before Persian invasion of Greece. There is also the report of Strabo of an Athenian delegation to Persia in 432 BC. The relations have evolved from sworn rivalry during the Greco-Persian wars, to strong cordiality, which is seen in the Greco-Persian culture created later on. Greece has an Embassy in Teheran, and Iran is represented by its Embassy in Athens.
According to a 2012 Pew Global Attitudes Survey, 27% of Greeks viewed Iran favorably, compared to 62% which viewed it unfavorably, making it the most pro-Iranian country in Europe. Despite this, 87% of Greeks oppose Iranian acquisition of nuclear weapons and 55% approve of "tougher sanctions" on Iran, though only 27% of Greeks support use of military force to prevent Iran from developing nuclear weapons, with 30% accepting a nuclear-armed Iran and 43% remaining indecisive.