SK-1

SK-1 or SK1 may refer to:


 * Casio SK-1, a small sampling keyboard
 * Garant 30k SK-1, an East German armored vehicle
 * Hammond SK1, a modern keyboard
 * SK-1 spacesuit, an early Russian spacesuit
 * sK1 (program), a fork of the Skencil vector graphics editor
 * Sphingosine kinase 1, a protein
 * SK1 (film), a 2014 French film
 * VR Class Sk1, a locomotive class