Moncrieff joined the UKHO - an executive agency of the Ministry of Defence that provides navigational products and services for the Royal Navy and merchant mariners - as a national hydrographer and in 2010 became chief operating officer and then chief executive.
He said: “It has been a real privilege to lead such a wonderful team, and in doing so contribute to the continued success of this historic Office.
“I shall always be proud to have led UKHO through interesting times in its digital journey and to uphold this 200 year old, world renowned brand.”
John Humphrey, who is currently the UKHO’s chief commercial officer and deputy chief executive, will take on the role of acting chief executive from 1, February.
The role will then be opened up after 12 months.
Interim arrangements for Humphrey’s role of chief commercial officer will be announced shortly, the UKHO said.