REGIONAL ORIGINAL INCOME By: Mahyuzzar Nim: 1309200010002 Advisor: 1. Dr. Abd. Jamal, S.E, M.Sc. 2. Dr. Muhammad Nasir, S.E., M.Sc., MA ABSTRACT This study aims to analyze the inequality of the Local Revenue of North Aceh Regency and the City of Lhokseumawe after the Expansion of this Research using a model of regional inequality analysis namely the Williamson index. The results of the study revealed that North Aceh District and Lhokseumawe City were districts that had low inequality. This is indicated by the low Williamsons Index. In the period 2006 - 2011 the Williamsons Index shows a declining trend. But from 2012 to 2016 the index is very fluctuating. The difference in PAD per capita between the two regions also showed a declining difference. Even since 2012, the PAD per capita in Lhokseumawe is higher than in North Aceh District Keywords: Regional Original Income, Inequality, Williamsons Index