Introduction: Pediatric nurses may stumble upon more than one complaint because of bullying in their workplaces. Workplace bullying of pediatric nurses leads to direct negative impact on their relationship with the children under care and their parents. Aim: To find out the relationship between workplace bullying against nurses and their bullying behaviors towards children. Design: A descriptive correlational research design was used. Settings: Six Pediatric Medical Units of Alexandria University Child's Hospital (AUCH) -at Elshatby, Alexandria, Egypt. Subjects: All staff nurses (120) who worked with children in the previously mentioned settings. Tools: Three tools were used, Tool I: Nurses' Characteristics Structured Interview Schedule, Tool II: Workplace Bullying Scale, and Tool III: Nurses' Bullying Behaviors towards Children Observational Checklist. Method: Every nurse was interviewed individually to collect data about nurses' characteristics. The Arabic translated Workplace Bullying Scale was disseminated to every studied nurse individually and it was filled down by the self-report method. Every studied nurse was observed individually for three times in three different shifts to assess his/her bullying behaviors towards children using Nurses' Bullying Behaviors towards Children Observational Checklist. Results: The total score of Workplace Bullying Scale showed that 65.8% of participating nurses had been bullied during their work hours. Nurses' bullying towards children was scored as 14.2%, 33.1%, 32.5% for the physical, verbal, and social behaviors respectively. There was a weak positive correlation between the total score of workplace bullying against nurses and their total score of bullying behaviors towards children with χ2 = 4.003, P= 0.04 and r=0.1. Conclusions: There was a significant positive correlation between workplace bullying against nurses and their bullying behaviors towards children. The strongest correlation was between workplace bullying and verbal bullying behaviors. The most common verbal bullying behaviors against children were name-calling and intimidation.