The Naval Security Team (NST; French: Équipe de sécurité navale; ESN) is a deployable and self-sustained Royal Canadian Navy (RCN) force protection unit established in 2016 tasked to augment the Canadian naval fleet's existing force protection assets in expeditionary or domestic environments.

[3][4] The NST first deployed in 2017, supporting the crew of HMCS Winnipeg during their port visit to Busan, South Korea.

[5][6] While in Busan, the NST provided on-water security for Winnipeg with two Defender-class patrol boats and shore-based sentries working alongside Republic of Korea Navy personnel.

[11] The NST operates 5 Defender-class boat equipped with two C6 machine gun.

NST members are armed with a SIG Sauer P225 pistol and a Colt Canada C8 carbine.