Guardian can refer to more than one topic:

• In law, a guardian is a person responsible for a ward.
• Guardian is one of the four temperaments according to the Keirsey Temperament Sorter
• The Guardian, a British newspaper
• The Guardian, a CBS TV show
• A Marvel Comics superhero who is essentially the Canadian version of Captain America, and also, a Silver Age DC Comics hero (see Guardian (comics))
• The final villain of the Ultima series, see Guardian (Ultima)
• A contemporary Christian rock band, see Guardian (music)
• A Bigelow Aerospace space station module, see Guardian (space station module)