Islam Nusantara is a model of thought, comprehension, and implementation of Islamic teachings covered by culture and tradition developed in Southeast Asia (the scope of which is limited to Indonesia), that reflects Islamic identity with methodological nuance. The identity has various and controversial responses when it is socialized among Moslem because Islam is one, namely, Islam taught by prophet Muhammad. Otherwise, the majority of Islamic scholars accepted Islam Nusantara. That Islam is one is substantively true, but it expressed widely including Islam Nusantara. Islam is presented (thought, comprehended, and implemented) through cultural approach. The result leads to the thinking model, comprehending, and implementing Islamic teachings which are harmonious, moderate, inclusive, tolerant, peaceful, and multicultural based. The diverse Islamic thought is caused by local culture, especially Javanese culture, or called cultural acculturation. The Indonesian Islam can be a role model. It brings peaceful and harmonious messages, so it could be socialized internationally and replaced misleading opinion that Islam is full of violence.