Sine Qua Non (wine)

Sine Qua Non (commonly abbreviated as SQN) is a California winery that is known for its limited-production and expensive wines made from blends of Rhône grape varieties. Each release is allocated and directly sold to a mailing list of customers. As of 2018, the wait to join the mailing list was about 9 years. The winery is located in Ventura County and was founded in 1993 by Austrian Manfred Krankl, who emigrated to the US in 1980.

The name of the winery, Sine Qua Non, is a Latin phrase translated as "absolutely indispensable". The wines themselves are given frequently changing names such as Queen of Spades, Twisted & Bent, Imposter McCoy, The Bride, Poker Face, and Red Handed. The bottles are unusually shaped with distinctive labels featuring Manfred Krankl's own artwork.