SN1 (disambiguation)
# 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
