Dioclea or Diocleia, and also Dioklea or Diokleia may refer to :

• Diocleia (festival), an annual festival in ancient Megara in honor of the hero Diocles, famous for the kissing contest between men
• Dioclea (state), a medieval state of Duklja, in south-eastern part of modern Montenegro
• Dioclea in Praevalitana, an ancient Roman and Byzantine city in the Province of Praevalitana, near modern Podgorica in Montenegro
• Dioclea in Phrygia, an ancient city and former bishopric in Phrygia (Asia Minor)
• Dioclea (plant), a genus of plants in the family Fabaceae

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