Christopher John Campbell is a British diplomat who served as the United Kingdom's ambassador to Ecuador from 2020 until 2023.

Campbell joined the Foreign and Commonwealth Office in 1982 and started in the North America Department.

In 1984, he moved to the Secretary of State's Private Office and the next year was placed to the UK Embassy in Khartoum as an economist.

[6][7] Because the UK did not have an embassy in Nicaragua, the post was non-residential and Campbell worked from San José.

[3] In July 2022, Niels Olsen, Ecuador's tourism minister, credited the work of Campbell and Ecuador's foreign minister Juan Carlos Holguin after the UK Foreign Office announced Ecuador would be moved to the green list for travel;[8] Campbell met his wife Sharon while working at the Foreign and Commonwealth Office and they married in 1989.