Nepenthes suratensis is a tropical pitcher plant endemic to Surat Thani Province, Thailand, where it grows near sea level in coastal savannah and grassland.

[2][3] The specific epithet suratensis is derived from the name of Surat Thani Province and the Latin ending -ensis, meaning "from".

This specimen, Kerr 13136, was collected at sea level from Kanchanadit, Surat Thani Province, Thailand.

[2] Nepenthes suratensis is a climbing plant growing to a height of approximately 3 m. The stem is terete and up to 5 mm in diameter.

A pair of wings (≤12 mm wide) runs down the ventral surface of the pitcher cup, bearing narrow fringe elements.

The extent of the glandular zone of the inner surface is variable, ranging from one-third to two-thirds of the pitcher's height.

The lower surface of the lid does not have any appendages, but bears numerous crater-like glands (≤1 mm in diameter), the largest of which are located around the midline.

The female inflorescence is similar in structure to the male one, but differs in having a shorter rachis (10–15 cm long) and longer pedicels of 4–10 mm, which either have greatly reduced bracts or lack them altogether.

[3] Nepenthes suratensis is endemic to coastal regions of Surat Thani Province, Thailand, where it is known from several localities near the town of Kanchanadit.

[1] It grows terrestrially in sandy soil and is only found in lowland areas, at altitudes of 0–200 m above sea level.

Extensive field work in the region has established the species's present range "with a high degree of confidence" and a wider distribution across Thailand is therefore unlikely.

[2] Nepenthes suratensis can be distinguished from all of these species on the basis of its caducous indumentum, which is restricted to the upper parts of the plant and is up to 0.3 mm long.

[2][8] In his description of N. suratensis, Catalano also noted a number of other vegetative and floral features that separate this species from N. andamana.

The extent of the glandular zone on the inner pitcher surface is more variable in N. suratensis, ranging from one-third to two-thirds of the trap's height.

Nepenthes suratensis also has a characteristically flattened peristome, unlike the cylindrical lip found in N. andamana.

In N. suratensis, the pitcher mouth is triangular as opposed to ovate, and larger in relation to the size of the trap.

[2][7] In his Carnivorous Plant Database, taxonomist Jan Schlauer treats N. suratensis as a possible heterotypic synonym of N. thorelii.