Hibernate interceptors provide a way to intercept and customize Hibernate's behavior at various stages of the object lifecycle. Interceptors can be used to perform actions such as auditing, logging, or modifying data before it is persisted or retrieved. To implement a Hibernate interceptor, developers need to create a class that implements the org.hibernate.Interceptor interface. The interceptor class can override methods that correspond to different events in the object lifecycle, such as onSave(), onDelete(), or onLoad(), and add custom logic to be executed during those events.