This paper presents an approach for model transformation from Queueing Network Models (QNMs) into Queueing Petri Nets (QPNs). This would open up the benefits of QPNs in analyzing the performance of QNMs. We present metamodels for QNMs and QPNs, and then present the transformation rules in the ATLmodel transformation language. To validate our approach, we apply it to analyze the performance of a QNM and compare the results with those obtained using analytic methods. Although the approach is presented using ATL and Ecore meta modeling language in the context of the Eclipse Modeling Project, it can be realized using other modeling frameworks and languages.