Na Bon (Thai: นาบอน, pronounced [nāː bɔ̄ːn]) is a district (amphoe) of Nakhon Si Thammarat province, southern Thailand.

Namtok Yong National Park is at the boundary to Thung Song District, protecting forested hills of the Nakhon Si Thammarat Range and includes several waterfalls.

On 9 June 1975 the two tambons, Na Bon and Thung Song, were split from Thung Song district to form the new minor district (king amphoe) Na Bon.

[2][3] The slogan of the district is "Khlong Chang waterfall, good breed of rubber, fertile land, join pit krit festival".

The district is divided into three sub-districts (tambons), which are further subdivided into 34 villages (mubans).