In physical geography, a dell is a small secluded hollow, (implying also) grassy, park-like, usually partially-wooded valley. The word "dell" comes from the Old English word dell, which is related to the Old English word dæl, modern 'dale'. Dells in literature are often portrayed as pleasant safe havens. The term is sometimes used interchangeably with dingle, although this specifically refers to deep ravines or hollows that are embowered with trees. The terms have also been combined to form examples of tautological placenames in Dingle Dell, Kent, and Dingle Dell Reserve, Auckland.
- Matthiessen State Park
- Cirque – An amphitheatre-like valley formed by glacial erosion
- Coulee – Type of valley or drainage zone
- Glen – Name for valley commonly used in Ireland, Scotland and the Isle of Man
- U-shaped valley, also known as glaciated valley – Valleys formed by glacial scouring
- Gully – Landform created by running water eroding sharply into soil
- Canyon, also known as Gorge – Deep ravine between cliffs
- Rivendell - Tolkien's fictional Elvish locale.
- Valley – Low area between hills, often with a river running through it
- Hollywood Dell, Los Angeles
- The Farmer in the Dell – Traditional song
- John Richard Clark Hall, A Concise Anglo-Saxon Dictionary
- "dingle". Merriam Webster. Retrieved October 31, 2018.
- "Dingle Dell, Sevenoaks". The Ordnance Survey. Retrieved July 27, 2020.
- Wilcox, M (2013). "Flora of dingle dell reserve, St Heliers". Auckland Botanical Society Journal. 68(2): 118–132.
- Media related to Dells at Wikimedia Commons