This article reviews risk factors for jailhouse suicide and then presents various measures that can be implemented to prevent inmate suicides. These include: screening all new inmates & identifying those who are acutely suicidal; providing psychological support; observing the suicidal inmate closely; disarming the suicidal inmate; having clear and consistent procedures; & diagnosing, treating &/or hospitalizing as necessary. The efficacy of suicide prevention in jails is also discussed.