Title: List of multiple Olympic medalists
Content:  This article provides a list of multiple Olympic medalists, i.e. those athletes who have won multiples Olympic medals at either the Summer Olympic Games or the Winter Olympic Games.
Title: List of multiple Olympic gold medalists
Content:  This article lists the individuals who have won at least four gold medals at the Olympic Games or at least three gold medals in individual events.
Title: List of multiple Olympic gold medalists
Content:  This is a progressive list of Olympians that have held the record for most titles won. It includes titles won in 1896 and 1900, before gold medals were awarded for first place. All record-holders have competed at Summer Games rather than Winter Games.
Title: List of multiple Olympic gold medalists
Content:  This list currently includes all Olympians with three or more gold medals won as individuals (not as part of a team of two or more).
Title: List of multiple Summer Olympic medalists
Content:  This list shows only the athletes who have won at least eight medals at the Summer Olympics.
Title: List of multiple Olympic medalists
Content:  This list contains only medals won in individual events, so no relays or team events count for this section.
Title: List of 2008 Summer Olympics medal winners
Content:  winning eight gold medals and setting a new record for most golds won in a single edition of the Olympics (the previous record, seven, had been set in 1972 by Mark Spitz). Phelps also set a new record for most career gold medals (14), and his 16 total medals were ranked second all-time behind Soviet gymnast Larisa Latynina (18) at the time. In 2012 Phelps set a record for most total medals. Several records for career medals in a sport were tied or surpassed, including cycling (Bradley Wiggins of the United Kingdom won two gold, tied for record with six career medals); 
Title: List of athletes with the most appearances at Olympic Games
Content:  Lupulesku (5) competed for Yugoslavia at the 1988 Olympics. In 1992, since Yugoslavia was under UN sanctions, they (and fifty other Serbians, Montenegrins and Macedonians) competed as Independent Olympic Participants before competing at the next Olympics under the flag of Serbia and Montenegro. Lupulesku became an American citizen and competed for the USA in 2004, while Šekarić finally competed for Serbia in 2008. Fourteen five-time Olympians have won at least eight medals: American swimmer Michael Phelps (28), Norwegian cross-country skier Marit Bjørgen (15), Norwegian biathlete Ole Einar Bjørndalen (13), Italian fencer Edoardo Mangiarotti (13), German kayaker Birgit Fischer (12), American swimmer Dara Torres (12), Hungarian fencer Aladár Gerevich (10), Finnish gymnast Heikki Savolainen (9), Jamaican-Slovenian sprinter 
Title: List of multiple Olympic medalists in one event
Content:  This is a list of Olympians who have won medals on numerous occasions in single events. Only Olympians with four or more medals in one event, or most medals in their sport, are included. If a person has contested for several nations, only the most recent nation is mentioned. In those instances where two or more athletes have the same number of total medals, the first tiebreaker is the number of gold medals, followed by the number of silver medals. Where two or more athletes have exactly the same number of gold, silver and bronze medals, the ranking is shown as a tie and the athletes are shown in order by career years and name. This list includes top-three placings in 1896 and 1900, even though these Games pre-dated the awarding of medals for top-three placings. Medals won in the 1906 Intercalated Games are not included.
Title: List of multiple Olympic medalists
Content:  This is a progressive list of Olympians that have held the record for most medals won. Medals won in the 1906 Intercalated Games are not included. It includes top-three placings in 1896 and 1900, before medals were awarded for top-three placings. All record-holders have competed at Summer Games rather than Winter Games. Legend: G = Gold, S = Silver, B = Bronze

Question: what olympic athlete has won the most medals?
Answer: American swimmer Michael Phelps.
Marit Bjørgen.
Michael Phelps.