Grainger may refer to:
- Grainger (name),
- Grainger County, Tennessee, county located in Tennessee, USA.
- Grainger Falls, waterfall in Chalky Inland, Fiordland, NZ.
- Grainger Market, covered market in Newcastle upon Tyne, England.
- Grainger Stadium, sports venue in Kinston, North Carolina, USA.
- Grainger Town, historic centre of Newcastle upon Tyne, England.
- Grainger challenge, scientific competition to find an economical way to remove arsenic from arsenic-contaminated groundwater.
- W. W. Grainger, Fortune 500 industrial supply company also known as Grainger Industrial Supply
- Grainger plc, a British residential property company