A false accusation of rape happens when a person states that they or another person have been raped when no rape has occurred. Although there are widely varying estimates of the prevalence of false accusation of rape, according to a 2013 book on forensic victimology, very few reliable scientific studies have been conducted.
Rates of false accusation are sometimes inflated or misrepresented due to conflation of false with designations such as unfounded. Designations such as unfounded allow law enforcement to close cases without arriving at a conclusion and are used to describe cases without enough evidence, as opposed to false cases where the accuser is not credible or eventually admits that the accusation is untrue.