Hazard may mean:

Dangers, risks, problems

• A hazard, for instance a natural hazard, a danger or source of danger, especially one threatening human safety.
• A hazard (computer architecture), a type of problem inherent in pipelined processors, including data hazard, branching hazard, and structural hazard.
• A hazard (logic), a fault or glitch in a digital logic system, including static hazard and dynamic hazard.
• A hazard pointer, a strategy to deal with reclaiming memory in multithreaded environments.
• A moral hazard, the name given to the risk that one party to a contract can change their behaviour to the detriment of the other party once the contract has been concluded.
• A race hazard, a glitch caused by timing errors.