Ingemar is a given name. People with the name include:
- Ingemar Backman (born 1976), Swedish professional snowboarder
- Ingemar Burgström (1926–1951), Swedish flyweight boxer
- Olai Ingemar Eikeland (1915–2003), Norwegian politician for the Centre Party
- Ingemar Erlandsson (born 1957), Swedish footballer
- Ingemar Hedberg (1920-2019), Swedish flatwater canoeist
- Ingemar Hedenius (1908–1982), Swedish philosopher
- Ingemar Johansson (1932–2009), Swedish boxer, former heavyweight champion of the world
- Ingemar Johansson (racewalker) (1924–2009), Swedish athlete
- Byron Ingemar Johnson (1890–1964), 24th Premier of British Columbia, Canada (1947–1952)
- Ingemar Lindh (born 1945), Swedish theatre director and pedagogue
- Ingemar Henry Lundquist (1921–2007), inventor and mechanical engineer
- Ingemar Nilsson (born 1956), Swedish politician
- Carl Ingemar Perstad, for 24 years host of the Swedish Broadcasting Company (SVT) motoring show Trafikmagasinet
- Ingemar Ragnemalm, computer programmer, writer of the Sprite Animation Toolkit (SAT)
- Ingemar Ståhl (1938–2014), Swedish economist
- Ingemar Stenmark (born 1956), Swedish skier
- Ingemar Stjernberg (born 1933), Swedish diplomat
- Ingemar Svensson (1929–2004), Swedish rower
- Ingemar Teever (born 1983), Estonian professional footballer
- Ingemar Thillberg, Swedish footballer
- Ingemar Vänerlöv (born 1944), Swedish Christian democratic politician