Kirstine Stewart (born c. 1968) is a media executive and is currently the President and Chief Revenue Officer of TribalSale. She was formerly the head of English language services at the Canadian Broadcasting Corporation, Vice President of Media at Twitter, and Chief Strategy Officer of Diply.
Prior to joining the CBC, she was Head of Programming for Alliance Atlantis cable channels; HGTV, the Food Network, National Geographic, BBC Canada, and more. Before that, Kirstine worked in the United States where she headed up international television broadcasting for 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 primetime ratings after a number of years of decline. Under Kirstine’s leadership, the CBC ranked number one as Consumer Brand of the Year, achieved its highest ad revenue growth in over 20 years and resumed its position as #1 Canadian television broadcaster. Stewart helped the CBC connect with new audiences across Canada through innovative programming.
On April 29, 2013 Stewart resigned from her position as Executive Vice President of English Services at the CBC after accepting a position at Twitter, Inc. She led Twitter’s expansion into Canada, and successfully oversaw North American partnerships across all verticals.
On September 15, 2016 it was confirmed that Stewart would be parting ways with Twitter. On September 20, 2016 it was further confirmed that Stewart had left her position at Twitter to join the content publisher Diply as their Chief Strategy Officer.  Under Kirstine, Diply was named an EY Young Entrepreneur of the Year, won NextMedia’s Digi Awards Company of the Year, and ranked first in Deloitte’s Fast50 Tech Growth Companies in Canada.
Kirstine’s book Our Turn , published by Random House in 2015, is a national best-seller geared towards leadership in today’s world. She also sits on the board of Kognitiv, the Score, and WOW Entertainment. Stewart is also a member of the DMZ Advisory Council, and is a mentor for theBIGPush.
- "Kirstine Layfield's job is tough at the best of times…". Ottawa Citizen. February 19, 2006. Archived from the original on November 7, 2012. Retrieved April 29, 2013.
- "Will Kirstine Stewart save the CBC?". The Globe and Mail. July 29, 2011. Retrieved April 29, 2013.
- "Executive director of network programming, CBC Television, Toronto". The Globe and Mail. March 31, 2009. Retrieved April 29, 2013.
- "New CBC head to undo predecessor's controversial legacy". The Globe and Mail. January 18, 2011. Retrieved April 29, 2013.
- "CBC/Radio-Canada announces departure of Kirstine Stewart". Canadian Broadcasting Corporation. April 29, 2013. Retrieved April 29, 2013.
- "Kirstine Stewart leaving job as Twitter vice president". Toronto Star. The Canadian Press. 21 July 2016. Retrieved 17 October 2016.
- "Kirstine Stewart joins content website Diply". The Globe and Mail, September 20, 2016.
- [https://www.theglobeandmail.com/report-on-business/kirstine-stewart-joins-toronto-startup-tribalscale-as-president/article37798439/ "Kirstine Stewart joins Toronto startup TribalScale as President". The Globe and Mail, January 30, 2018.
- [https://www.theglobeandmail.com/technology/tribalscale-launches-new-venture-studio-program/article37880755/. The Globe and Mail, February 7, 2018.
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