BNS Prottoy is a Type 056 stealth surface warfare guided missile corvette of Bangladesh Navy.

[3] Due to inclement weather in the Bay of Bengal, six fishing trawlers of Bangladesh with 90 fishermen entered into Indian waters with their boats damaged.

BNS Prottoy took part in international fleet review arranged to celebrate 70th anniversary of People's Liberation Army Navy from 22 to 25 April 2019.

[8] BNS Prottoy left Chattogram on 6 February 2021 to take part in IDEX-2021 and Navy Defence Exhibition (NAVDEX)-2021, to be held in United Arab Emirates.

She is propelled by two SEMT Pielstick 12PA6 diesel engines with a distance adjustable tail rotor which can provide enough power for her top speed of more than 25 knots (46 km/h; 29 mph).

Compared to the traditional round bilge boat, the ship is designed with V type, having angle bending line at the bottom so that she can sail with high speed in rough sea states.

The ship uses SharpEye I-Band (X-band) and E/F-Band (S-band) radars from Kelvin Hughes with MantaDigital tactical display software.