Klek may refer to:

• Klek (Zrenjanin), a village in Serbia, in Zrenjanin municipality
• Klek, Croatia, a village in southern Croatia
• Klek mountain, Croatia
• Klek (peninsula), a peninsula near Neum, Bosnia and Herzegovina
• Klek (Karawanks), a peak in the Karawanks in Slovenia
• Klek, Trbovlje, a village in the Municipality of Trbovlje, central Slovenia
• Klęk, a village in Poland

• Orajel Kids
• Orajoe
• Orajoe, Parnu County
• Orajoe, Polva County
• Orajärvi
• Orajõe
• Orajõe, Pärnu County
• Orajõe, Põlva County
• Orak
• Orak (disambiguation)
• Ora Kedem
• Orakei Basin
• Oraker (station)
• Orakian
• Orakio
• Orakpo
• Orakzai and Kurram offensive
• OR-AL
• Oral account
• Oral administration
• Oral agreement
• Oral airway
• Oral and Craniomaxillofacial
• Oral and Craniomaxillofacial surgery
• Oral and maxillofacial pathology