He replaces Colin Gibson, who left the role in early January to become deputy director of comms at the Baku 2015 European Games Operation Committee, based in Azerbaijan.
Haynes, who has held a series of comms roles at Sky, including PR director for Sky Sports and director of external affairs for Sky Sports and Team Sky, will join the ECB’s senior leadership team at Lord’s in May to lead the comms department.
ECB chief executive Tom Harrison said: "Chris is one of the very best communications professionals in the business and he has a hugely impressive track record in delivering successful PR campaigns across a range of sports, supporting talent and working at the most senior levels."
Harrison said Haynes will "have a major role to play as we develop a long-term strategy for the whole game, build towards this summer’s Ashes series, and prepare to host ICC global events here in 2017 and 2019".
Haynes, who is Harrison’s first outside appointment to his leadership team, said: "I’m really looking forward to working closely with Tom Harrison, his team and the communications department as well as supporting the ECB’s wider efforts to boost grassroots participation, increase domestic attendance and achieve wider support and recognition for the England men’s, women’s and disability cricket teams."