Calm Channel[1] is a channel located between several major islands of the Discovery Islands in British Columbia, Canada.

The channel is an important waterway for boats transiting the archipelago.

Adjacent waterways include Cordero Channel and Bute Inlet (to the north), Raza Passage and Deer Passage (to the east), Lewis Channel and Sutil Channel (to the south), Whiterock Passage (to the southwest), and Hole in the Wall (to the northwest).

[2] Water flows into Calm Channel primarily from Bute Inlet, and Pryce Channel via Deer Passage and Raza Passage.

[3] Due to this predominantly south-moving water flow, Calm Channel is not officially considered part of the Salish Sea proper, but it is considered part of its watershed.