In the eyes of many people, political parties, the hallmark of modern democratic government, have become the biggest obstacles to democratic consolidation and good governance in much of democratic Southeast Asia. The purpose of this article is to analyze some of the characteristics of the parties and party systems in this area of the world. I first review the role that parties and party systems play in developing democracies and then evaluate the party systems in Thailand, Indonesia, and the Philippines in light of these roles. I focus on the extent to which the party systems in these countries are (or are not) institutionalization and demonstrate that all three party systems are weakly institutionalized.