Abstract: A study was carried out on first commercial introduction of in-pond raceway system (IPRS) aquaculture technology in Bangladesh in 2020-2021. Oreochromis niloticus a commercial aquaculture species tilapia was stocked at the density of 1.97 kg/m3 in a 22m × 5m × 2m culture area raceway and at the end of 183days of production cycle harvest density was recorded 48.63kg/m3. Specific growth rate was 1.96%d and overall FCR was found 1.55. Fishes were fed with 25% protein content commercial feed. As co-cultured fish species additional 692.31kg/ha, 503.85kg/ha, 1743.59kg/ha 294.87kg/ha 115.38kg/ha and 50kg/ha of Labeo rohita, Catla catla, Hypopthalmicthys molitrix, Aristicthys nobilis, Ctenopharyngodon idella and Mylopharyngodon piceus were harvested from outside raceway pond. Water quality parameters were more or less in suitable range. Results reveals that Oreochromis niloticus can be considered as a suitable species for IPRS aquaculture in Bangladesh.