Preserver can refer to:
* Life preserver, a
personal flotation device
A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suite that is worn by a ...
or
lifebuoy
* Life preserver, a type of
club (weapon)
A club (also known as a cudgel, baton, bludgeon, truncheon, cosh, nightstick, or impact weapon) is a short staff or stick, usually made of wood, wielded as a weapon since prehistoric times. There are several examples of blunt-force trauma caused ...
* , a Canadian navy ship
** , Protecteur-class supply ship
** , leadship of the Fairmile-support depot ships
* , a U.S. navy ship
*
Preserver (Elfquest), a race in the fantasy comic ''Elfquest''
*
Preservers (Star Trek), a Star Trek species
*
''Preserver'' (Star Trek), a novel by William Shatner
{{Disambiguation