The association between adolescents' and young adults' attitudes toward suicide and their own suicidality across five racial-ethnic classifications was studied in a nationally representative sample of 3,301 youth ages 14 to 22 years from the National Annenberg Risk Survey of Youth. Results indicate that adolescents and young adults who most strongly believe that it is acceptable to end one's life are more than fourteen times more likely to make a plan to kill themselves as those who do not have such beliefs (p less than 0.001). Future behavioral prevention and intervention research should take into consideration adolescents' and young adults' approval of suicide as a risk factor for taking their own lives.