HDMS Sehested (P 547) was a Willemoes-class fast attack craft of the Royal Danish Navy which was in commission from 1978 until 2000. It is now docked at Holmen in Copenhagen where it serves as a museum ship, part of the Royal Danish Naval Museum. The ship is named after Christen Thomesen Sehested, a Danish vice-admiral during The Great Northern War (1709-1721).