Open field may refer to:
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Open-field system
The open-field system was the prevalent agricultural system in much of Europe during the Middle Ages and lasted into the 20th century in Russia, Iran, and Turkey. Each manor or village had two or three large fields, usually several hundred acre ...
, a system of agriculture prevalent throughout Europe from the Middle Ages to the 20th Century
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Open fields doctrine, a U.S. legal doctrine used for evaluating claims of an unreasonable search
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Open Field'', album by Taken By Trees
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Open Field (animal test)
Developed by Calvin S. Hall, the open field test is an experimental test used to assay general locomotor activity levels, anxiety, and willingness to explore in animals (usually rodents) in scientific research. However, the extent to which behavio ...
, a measure of general locomotor activity in rodents
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