Horabagrus nigricollaris is a species of catfish endemic to India.

[2] It is found only in the Chalakudy River in Kerala, India.

[3] This species is an inhabitant of hill streams.

[3] H. nigricollaris is sleeker in body shape than H. brachysoma and can reach a length of 27 centimetres (11 in) TL.

[3] This species is less yellow than H. brachysoma and the black markings extend over the neck, forming a "black collar" (hence the scientific name).