Wrongful execution is a miscarriage of justice occurring when an innocent person is put to death by capital punishment. Cases of wrongful execution are cited as an argument by opponents of capital punishment, while proponents say that the argument of innocence concerns the credibility of the justice system as a whole and does not solely undermine the use of the death penalty.

A variety of individuals are claimed to have been innocent victims of the death penalty. Newly available DNA evidence has allowed the exoneration and release of more than 20 death-row inmates since 1992 in the United States, but DNA evidence is available in only a fraction of capital cases. At least 190 people who were sentenced to death in the United States have been exonerated and released since 1973, with official misconduct and perjury/false accusation the leading causes of their wrongful convictions. The Death Penalty Information Center (U.S.) has published a partial listing of wrongful executions that, as of the end of 2020, identified 20 death-row prisoners who were "executed but possibly innocent".

Judicial murder is a type of wrongful execution.