Kiesel may refer to:

• Kiesel (surname)
• Kiesel, California
• Kiesel Guitars, a guitar manufacturer
• The chemical element Silicon
• The chemical compound Silicon dioxide
• The mineral from silicon dioxide Quartz
• Unspecific chemical compounds of Silicic acid
• a widely distributed sediment, small stones (Kieselsteine), see Kies (disambiguation)

• Blepharucha zaidaria
• Blepharucha zaide
• Blepharum
• BlephEx
• Blephilia ciliata
• Blephilia hirsuta
• Blepisanis basirufipennis
• Blepolenis
• Blepsias
• Blepsias bilobus
• Blepsias cirrhosus
• Blepsias draciscus
• Blepsias trilobus
• Bleptina bidentata
• Bleptina crossodora
• Bleptina flocculalis
• Bleptina latifascialis
• Bleptina sordescens
• Bleptina triangulifera
• Bleptinodes borbonica
• Blera bolivari
• Blerd
• Blerimaj
• Blerim Destani
• Blerim Kotobelli