BS1

BS1 or BS-1 may refer to :
 * BS1 Records, a record label producing the artist TC
 * BS-1 Tishina, a Russian silenced 30mm grenade launcher
 * Glasflügel BS-1, a glider
 * NHK BS1, a Japanese satellite television channel
 * BS1, a center drill bit size
 * BS1, a BS postcode area in Bristol, England
 * BASIC Stamp 1, a microcontroller
 * BS-I Bharat Stage emission standards in India