'''Lyr''' or '''LYR''' may refer to: {{TOC right}} == 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 {{Disambiguation}}