A Night in Venice may refer to:

• Eine Nacht in Venedig, an 1883 operetta with music by Johann Strauss II
• A Night in Venice (1934 film), a film adaptation of the operetta
• A Night in Venice (1953 film), a later film adaptation of the operetta

• Causality problem
• Causality Problem
• Causal loops
• Causal Markov Condition
• Causal Markov condition
• Causal oversimplification
• Causal relation
• Causal relationships
• Causal system
• Causal Theory of Names
• Causal theory of names
• Causal theory of proper names
• Causal theory of reference
• Causantín mac Cináeda
• Causantín mac Fergusa
• Causation
• Causative
• Cause
• Cause 4 Concern
• Cause 4 Concern Recordings
• Cause (Algeria)
• Cause and Effect (Star Trek: The Next Generation)
• Cause and effect theory
• Cause celebre
• Cause Celebre