Lyr or LYR may refer to:
Mythology
- Llŷr, a Welsh figure
- Lir, an Irish sea god
- Leir of Britain, a pseudohistorical king
Science
- Lyra (Lyr), a northern constellation
- Light-year (ly or lyr), an astronomical unit of distance
- LYR protein, a protein containing a leucine–tyrosine–arginine (LYR) tripeptide, should not be confused with LYRM protein
Transport
- Lancashire and Yorkshire Railway, England (1847–1923)
- Svalbard Airport, Longyear, Norway (IATA code:<code>LYR</code>)
- Layar LRT station, Singapore (LRT code:<code>LYR</code>)
Other uses
- LYR (band), led by Simon Armitage
See also
- Llŷr (given name)
- Lyre, a musical instrument
