SB2

SB2 may refer to :


 * .sb2 file, a file format for Scratch
 * Antimonide
 * S3 (classification), or SB2, a disability swimming classification for breastroke
 * Scratchbox 2, a cross-compilation toolkit for Linux
 * Surface Book 2, a Microsoft computer
 * Tupolev SB, a Russian 1930s bomber
 * a form of Methanobactin produced by Methylocystis bacteria
 * a type of spectroscopic binary star
 * a series of Bimota motorcycles by Suzuki
 * an upgrade of the Smart Roadster