Metaloricaria nijsseni is a species of armored catfish endemic to Suriname where it occurs in the Suriname, Saramacca, Nickerie and Corantijn River basins.

This species grows to a length of 29.5 centimetres (11.6 in) SL.

[1] The catfish is named in honor of Han Nijssen (1935-2013), of the Zoölogisch Museum.

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