Indonesia is the largest country in Southeast Asia, with more than 18 000 islands and islets. More than half of the population, the largest in Southeast Asia, lives on the island of Java. The economy grows at pace, and the level of human development, including income, life expectancy, and education, is high. Indonesia shares similarities with the Philippines in the geographic distribution of population, as well as in human development indicators. These two countries are analysed as a cluster represented by Indonesia. The chapter outlines the geographic, economic and social conditions for broadband connectivity in Indonesia. It proceeds by examining the performance and structure of the market and reviewing Indonesia’s communication policy and regulatory framework, including broadband strategies and plans. It then reviews competition, investment and innovation in broadband markets; broadband deployment and digital divides; networks' resilience, reliability, security and capacity; and the country’s assessment of broadband markets. It offers recommendations to improve in these areas, which could be relevant for the other countries forming this cluster.