SLK

slk or SLK may stand for:


 * SLK (gene), a gene that in humans encodes the enzyme STE20-like serine/threonine-protein kinase
 * SLK (group), a British grime music group
 * Adirondack Regional Airport, US (IATA code)
 * Mercedes-Benz SLK, a sports car
 * SilkAir (ICAO code)
 * Slovak language (ISO 639-2 code)
 * SLK, a 2014 album by Stam1na
 * .slk, filename extension for the SYmbolic LinK (SYLK) format
 * Starostové pro Liberecký kraj (Mayors for Liberec Region), Czech political party