Heraclea, Heracleia, Herakleia, or Heraclia (Ancient Greek: Ἡράκλεια) may refer to:

Places

Heraclea Cybistra, Konya Province, Turkey
- Ereğli, Konya, the modern city
Heraclea ad Latmum, near Lake Bafa, Turkey
Heraclea Pontica, Zonguldak Province, Turkey
- Karadeniz Ereğli, the modern city
Heraclea (Aeolis), a place in Aeolis near Melampagos, Turkey
Heraclea (Lydia), a place in Lydia near Sipylus, Turkey
Heraclea Salbace, a place in Caria near Mount Salbacus, Turkey
Heraclea (Media) [el], a place in Media (modern-day Iran)

Heraclea (Thracian Chersonese), a town in the Thracian Chersonese, now in Turkey
Heraclea Lucania, Lucanian district of southern Italy
Heraclea Lyncestis, a town founded by Philip II of Macedon near the modern town of Bitola, North Macedonia
Heraclea Minoa, a town on the south coast of Sicily
Heraclea Perinthus, city of ancient Thrace, now in Tekirdağ Province, Turkey
- Marmara Ereğlisi, the modern city
Heraclea Sintica, now in Bulgaria
Heraclea in Trachis (also called Heraclea Trachinia), south of the river Spercheios to the west of Thermopylae
Heraclea, ancient name of Saint-Tropez
Herakleia (Acarnania), a city in Acarnania
Heraclea (Athamania), a city of ancient Athamania
Heracleia (Crete), a town of ancient Crete
Heraclea (Elis), a city of ancient Elis
Heraclea (Mygdonia), a town in Mygdonia
Heraclea by Erice [es], a place near Erice, Sicily
Heraclea (Illyria) [es], a place in Illyria, possibly on Hvar island

Other uses

Heracleia (festival), ancient festivals honoring the divine hero Heracles
Heracleia, largely lost epic poem of Panyassis of Halicarnassus
Heracleia, epic poem of Peisander of Rhodes recounting the Labours of Heracles
Heraclia (moth), a genus of moths in the family Noctuidae
Heraclia (plant), a taxonomic synonym for the genus Centaurea
Battle of Heraclea in 280 BC between the Romans and a coalition of Greeks