CCGS Siyay[a] is a Canadian Coast Guard Type 400 BHC AP1-88/400 hovercraft based in Richmond, British Columbia.

[2][3] The hovercraft is powered by four Caterpillar 3416 TTA diesel engines turning two controllable-pitch propellers creating 2,818 kilowatts (3,779 hp).

[3][b] The contract to build Siyay and sister ship Sipu Muin was awarded in May 1996 to GKN Westland.

[4] In September 2014, Siyay underwent unscheduled maintenance, forcing the Canadian Coast Guard to redeploy other vessels to cover for the loss.

[5] However, by the end of the month, Siyay was back in service, rescuing seven people from a sinking fishing boat off the coast of British Columbia.