Greeks vote to abolish the monarchy, beginning the first period of the Metapolitefsi.

A constitutional referendum was held in Greece on 29 July 1973. The amendments would confirm the abolition of the monarchy by the military junta and establish a republic. The proposal was approved by 78.6% of voters with a turnout of 75%.

The Metapolitefsi was a period in modern Greek history from the fall of the Ioannides military junta of 1973–74 to the transition period shortly after the 1974 legislative elections.