SN1 (disambiguation)

SN1 may refer to:
 * SN1 reaction, a type of organic chemical reaction
 * (7990) 1981 SN1, a Main Belt minor planet
 * (7058) 1990 SN1, a main-belt minor planet
 * a SN postcode for Swindon, England
 * Sportsnet One, a Canadian sports channel