Original description as Haplochromis buysi:
- Penrith, M. L.. 1970. "Report on a small collection of fishes from the Kunene River mouth". Cimbebasia. (Ser. A) pp. 165-176 (crc00195)
- Tilapia steindachneri Boulenger, 1913, with type locality at Dongwenna Swamp and Que River, Angola. Determiner: van Oijen et al., 1991
Conservation: Thoracochromis buysi is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2007).