The five-day event was organised to mark the centenary of the 1910 World Missionary Conference held in the Capital and seen as one of the most important modern Christian gatherings.
Organisers said the centenary event had been a success.
The conference was, however, marred by controversy over the suspension of its director Dr Daryl Balia, a South African Methodist minister, after he produced a report accusing former missionaries of bullying and intimidation.