Chiltern can refer to the following places:
In England:
- Chiltern Hills, an area of Outstanding Natural Beauty, known locally as "the Chilterns"
- Chiltern District, a local government district in Buckinghamshire named after the hills
- Chiltern Open Air Museum, an open-air museum in the same hills
- Chiltern Hundreds, ancient administrative area lying partially in the Chiltern Hills
- Crown Steward and Bailiff of the three Chiltern Hundreds of Stoke, Desborough and Burnham, a political appointment
- Chiltern Main Line, an important railway line, that runs through the Chiltern Hills
- Chiltern Railways, the company that operates the line
- Chiltern Radio Network, a group of radio stations based in Dunstable
- Heart Dunstable, one of the stations in that group, previously known as "Chiltern Radio"
- Chiltern Court, building above Baker Street tube station, London
- Chiltern Street, a street in Marylebone, London
In Australia:
- Chiltern, Victoria, a town near Rutherglen