Both Church and Finch joined Chichester Festival Theatre in 2005, overseeing the organisation’s 50th anniversary in 2012 and the recent £22 million redevelopment of the Festival Theatre.
Jonathan Church said: "It has been a privilege and a joy to have been the custodians of this very special theatre for the last decade and to have worked alongside some of the country's most skilled actors and creative teams.
"It will be painful leaving a theatre that feels like our creative home but regional theatres thrive on new ideas and new energies. I like to think we will hand this wonderful theatre over to its next caretakers in an excellent position to build further on its extraordinary history."
