Background: Bullying is a widespread problem for school-aged children and adolescents. Interventions to reduce bullying are not well disseminated. Extracurricular involvement is, however, common. This study aims to examine the relationship between parent-reported participation in extracurricular activities and bullying perpetration. Methods: Using the 2011 National Survey of Children's Health, 62,215 interviews with parents of children 6 to 17 were analyzed. Extracurricular categories of sports only, sports + nonsport, nonsport only, and no activities were based on parental response to questions regarding sport teams/lessons, clubs, and organizations. Bullying was derived from report of the child "bullying or being cruel/mean to others." Weighted bivariate analyses, logistic regression, and sex/race/ethnicity/age stratified analyses were conducted. Results: Eighty percent of children participated in extracurricular activities: 8% sports, 48% sports + nonsports, and 24% nonsports. Bullying perpetration was reported in 15% of the sample. Compared with those not participating in extracurricular activities, the odds of bullying were significantly lower for children who participated in sports + nonsports (Adjusted odds ratio (AOR) 0.67, 95% confidence interval [CI] 0.57-0.79) and nonsport only (AOR 0.82, 95% CI 0.70-0.97). Stratified analyses showed attenuated effects of extracurricular activities for boys and for Hispanics. Conclusions: Children who participate in a variety of extracurricular activities exhibit the least frequent bullying perpetration.