Frank Rogers has said he will depart next September, with the search for his replacement to begin this autumn.
Following the election of Steve Rotheram as Metro Mayor in May 2017, Rogers took up the position of interim head of paid service and was appointed chief executive of the combined authority in November 2018.
Earlier in his career, Rogers was general manager of the Mersey Tunnels, before becoming director general of Merseytravel, a position he holds in conjunction with his role at the combined authority, and oversaw the £500m procurement of a new fleet of trains for the Merseyrail network.
Rogers will also retire from his role at Merseytravel in September 2021.
Steve Rotheram, Metro Mayor of the Liverpool City Region, said: “Frank has played an absolutely pivotal role in the progress we have made in the city region over recent years. He has made a huge contribution to improving the lives of the 1.6m people we serve, with an unshakeable determination and integrity.”
Rogers said: “I have been exceptionally privileged to have had the opportunity to serve the city region I love over the last 15 years and to have played a part in the huge progress we have made.
“Setting a clear timetable for my retirement next year means that we can put in place a smooth transition for appointing my successor to take the combined authority on the next phase of our journey as we work to build back better.”