Two trains collide south of the Vale of Tempe in Greece, leading to the deaths of at least 57 people and leaving 58 missing and 85 injured.

On 28 February 2023, a head-on collision occurred between two trains south of the Tempe Valley in Greece, about halfway between the Greek villages of Tempi and Evangelismos in the Thessaly region. The collision, follow-up derailment and fireball that ensued involving the InterCity 62 (IC62) passenger train operated by Hellenic Train and an intermodal freight train, killed 57, heavily injured 81 and lightly injured 99 people. The estimated number of people were 352 on the passenger train including 10 staff, and 2 staff on the freight train totalling 354 people on both trains. It is the most serious railway accident in Europe since 2013, when a train derailment in Santiago de Compostela killed 79 people.

The Vale of Tempe or Tembi is a gorge in the Tempi municipality of northern Thessaly, Greece, located between Olympus to the north and Ossa to the south, and between the regions of Thessaly and Macedonia. The gorge was known to the Byzantines as Λυκόστομο and was called simply Boğaz (Gorge) by the Turks.

Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to the east. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, and the Sea of Crete and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin, spanning thousands of islands and nine traditional geographic regions. It has a population of over 10 million. Athens is the nation's capital and largest city, followed by Thessaloniki and Patras.

February 28 is the 59th day of the year in the Gregorian calendar; 306 days remain until the end of the year.