This study empirically examines the mediating effect of good governance on the relationships between application of e-government and implementation bureaucratic reform agenda on the performance of governmental offices in the Aceh province, Indonesia. 432 officers from all 48 governmental offices in Aceh, Indonesia were selected as the sample of study based on the purposive sampling technique. To analyse the collected data through the questionnaires’ distribution, the structural equation modelling (SEM) technique was adopted. The study documented that the application of e-government and bureaucratic reform had improved the implementation of good governance principles and directly contributed to an enhancement of the public organizational performances. Additionally, the good governance partially mediated the effects of e-government and bureaucratic reform on the performance of governmental offices in Aceh, Indonesia. These findings indicate that the implementation of good governance based on bureaucratic reform and e-government has contributed to the enhancement of performance of the public organisations in Aceh, Indonesia. Thus, all policies designed to further improve the performance of public organization should be focused on the promotion of good governance practices on the basis of the application of egovernment and bureaucratic reform agenda.