Combined Task Force 151 (CTF 151) is one of three task forces operated by Combined Maritime Forces (CMF).

CTF 151 was established in January 2009 with a specific piracy mission-based mandate, as a response to piracy attacks in Somalia, currently endorsed under UNSCR 2316. This has now been expanded to include conducting wider maritime security operations in support of CMF

CTF 151’s mission is to deter and disrupt piracy and armed robbery at sea and to engage with regional and other partners to build capacity and improve relevant capabilities in order to protect global maritime commerce and secure freedom of navigation.