There is no one definitive answer to the question of how many dialects are there in Indonesia. This is because the answer depends on how you define a dialect.
Generally, linguists classify Indonesian dialects into two large groups: Western Indonesian and Eastern Indonesian. Western Indonesian dialects are spoken on the islands of Sumatra, Java, Bali, and Lombok. Eastern Indonesian dialects are spoken on the islands of Sulawesi, Maluku, and Papua.
Within these two groups, there are further subdivisions. For example, …