A diorama is a 19th-century theatrical device or modern three-dimensional model.

Diorama can also refer to:

• Diorama (Silverchair album), 2002
• Diorama (Kenshi Yonezu album), 2012
• Diorama (band), a German electropop band
• Diorama, Goiás, a town in Goiás state, Brazil
• Diorama (Efteling), an attraction in Efteling amusement park in the Netherlands
• Diorama effect, miniature faking of a photograph

• Dierama