Phantis:Selected anniversaries/May 30
- 1918: The Battle of Skra, fought in the Macedonia front in World War I, ended in Greek victory over the Bulgarians.
- 1941: Manolis Glezos and Apostolos Santas took down the German flag from the Acropolis, Athens.
- 1969: The first Greek policewomen went on duty.
- 1990: A liver transplant was performed for the first time in Greece.
- Births: Gerasimos Arsenis, politician (1931), Alketas Panagoulias, football player and coach (1934), Kostas Chalkias, footballer (1974)
- Deaths: Bishop Germanos of Patra, who blessed the Greek War of Independence (1826).