Suvannamaccha (Thai: สุพรรณมัจฉา; RTGS: Suphannamatcha or Suphan Matcha; Khmer: សុវណ្ណមច្ឆា, ALA-LC: Suvaṇṇmacchā; Pali: सुवण्णमच्छा, suvaṇṇamacchā; literally "golden fish") is a daughter of Ravana (Thotsakan) appearing in the Thai and other Southeast Asian versions of Ramayana.

[1] She is a mermaid princess who tries to spoil Hanuman's plans to build a bridge to Lanka but falls in love with him instead.

[2] The figure of Suvannamaccha is popular in Thai folklore and is represented on small cloth streamers or framed pictures that are hung as luck-bringing charms in shops and houses throughout Thailand.

Hanuman collects his band of Vanaras and they begin throwing huge boulders into the sea to make a foundation for the causeway.

Hanuman asks for volunteers to join him while he instructs the others to continue throwing rocks into the sea.

He tells her of the abduction of Sita, the battle between Rama and her father Ravana and why they started to build a bridge to reach Lanka.