31G Records, or Three One G, is a San Diego, California-based independent record label, started by musician Justin Pearson in 1994 and focusing on punk and experimental music. The label has released a number of albums and compilations in what has been described as "freak punk" and "spaz-rock." Musicians on the label frequently collaborate, creating supergroups such as Holy Molar, Some Girls, and Head Wound City. Three One G's roster has featured many noise rock bands.