1l or 1-L may refer to:
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first-line medical treatment, 1L treatment, first-line therapy (2L, 3L, etc.)
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Marawing 1-L Malamut, Czech ultralight aircraft
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Toyota 1L
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Volkswagen 1-litre car
The Volkswagen XL1 (VW 1-litre) is a two-person limited production diesel-powered plug-in hybrid produced by Volkswagen. The XL1 car was designed to be able to travel 100 km on 1 litre of diesel (), while being both roadworthy and practica ...
*First year
law school student in the United States
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Liberland radio prefix
See also
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L1 (disambiguation)
{{Letter-NumberCombDisambig