Kirstine Stewart (born c. 1968) is a media executive, formerly the head of English language services at the Canadian Broadcasting Corporation and vice-president of media at Twitter. She is currently chief strategy officer of Diply.
She first joined the CBC in 2006 as executive director of programming for CBC Television. Known as Kirstine Layfield at the time, she later returned to using her birth surname, Stewart.
Prior to joining the CBC, she was head of programming for four Alliance Atlantis cable channels, and before that worked in the United States where she headed up international television broadcasting for all Hallmark Channels worldwide.
Her tenure with CBC Television was noted for popular series such as Little Mosque on the Prairie, Dragons' Den, The Tudors, Battle of the Blades, Murdoch Mysteries and Being Erica, which revived the network's prime time ratings after a number of years of decline.
She is married to actor Zaib Shaikh, the star of Little Mosque.
On April 29, 2013 Stewart resigned her position as executive vice president of English services at CBC after accepting a position at Twitter, Inc.
On September 15, 2016 it was confirmed that Stewart will be parting ways with Twitter. It is unknown at this time the details of the separation. On September 20, 2016 it was confirmed Stewart had left her position at Twitter to join the content publisher Diply as their chief strategy officer.