Specimen may refer to:

• Sample (material), a limited quantity of something which is intended to be similar to and represent a larger amount
• Biological specimen or biospecimen, an organic specimen held by a biorepository for research
• Laboratory specimen, a biological specimen taken by sampling
• Zoological specimen, an animal or part of an animal preserved for scientific use
• Botanical specimen, a plant or part of a plant used for scientific purposes
• Herbarium, a collection of preserved plant specimens for scientific study
• Type specimen (mineralogy), a reference sample by which a mineral is defined

• Specimen banknote, to aid in the recognition of banknotes
• Specimen stamp, used to identify valid stamps

• Specimen (band), a British band
• Specimen (film), a 1996 Canadian film
• Specimen Products, an American audio equipment and musical instrument manufacturer
• Specimen Ridge, a ridge in Yellowstone National Park, Wyoming, U.S.