In the newly created role, Fletcher will lead the development and delivery of PR campaigns for Sky’s entertainment and news channels, and aim to build up its reputation as a content business. Her start date is yet to be confirmed.
Fletcher has been controller of press and publicity at Channel 4 since 2010, and is responsible for all of Channel 4’s communications with external media.
She has also worked at the BBC heading communications for a range of BBC channels including BBC One and BBC Drama.
At Sky, Fletcher will lead a team of 30 and report to Robert Fraser, director of external communications.
Fraser said: "Jane brings huge experience and will be a great addition to the strong team here as we look to get even more people talking about our shows."
Fletcher said: "It has been hugely rewarding leading the Channel 4 press team for the past four years but now feels like the right moment for a new challenge. Sky is a fascinating business and as it continues to grow its content investment I think this new role can have real impact."