The deceased global icon praised his wife for being by his side through thick and thin, including during the hard times as UN Secretary-General.
"My love, you are now back home where you started your long journey".
The current United Nations leader, in his remarks at the funeral of his predecessor, paid glowing tributes to Annan, who said goodbye to the world on August 18 in Switzerland - he was 80 years.
His opposition to the Iraq War in 2003 endeared him to anti-war groups and drew sharp criticism from US Conservatives, including John Bolton, the former US ambassador to the United Nations who became national security adviser to President Donald Trump.
Annan, a Ghanaian national and Noble laureate, died in a Swiss hospital last month at the age of 80.More news: EU Parliament Approves Strong Article 13 Copyright Directive, Will End 'Safe Harbor'
The king of Ghana's Asante people, Otumfuo Nana Osei Tutu II, awarded Annan the title Busumuru in 2012 to honour his role as an worldwide diplomat.
The wife of Kofi Annan has paid her last respect to her husband, Kofi Atta Annan.
Around 6,000 mourners filled the auditorium for yesterday's service - the climax of a multi-day funeral ceremony, which has seen his coffin, draped in the Ghanaian national colours, displayed for public viewing.
Several tributes were read in honour of late Kofi Annan, before he was finally laid to rest at the Military cemetery at Burma Camp, Accra.
"As we face the headwinds of our troubled and turbulent times, let us always be inspired by the legacy of Kofi Annan", he said.
Even after serving as secretary-general, Mr Annan continued to work on the front lines of diplomacy, Mr Guterres said.More news: Roxanne Pallett will return to TV on 'Celebrity Coach Trip' revival
He was awarded the Nobel Peace Prize in 2001 for helping to revitalise the worldwide body, during a period that coincided with the Iraq War and the HIV/Aids pandemic.
Annan, a proud African, whom Nelson Mandela called "my leader", left the post as one of the most popular - and recognisable - United Nations chiefs in history, and was considered a "diplomatic rock star" in worldwide circles.
In a rather short tribute, Ama extolled her father's life as one perfectly lived on earth.
"He gave his life to make peace where there was conflict, to defending the voiceless who were powerless, to promote virtue where there was evil".
He kept up his diplomatic work, taking mediation roles in Kenya and Syria, and more recently heading an advisory commission in Myanmar on the crisis in Rakhine state.
He managed to broker the deal that led to formation of the Grand Coalition Government, pulling Kenya from the edge of the precipice.More news: Saudi, Iranian envoys call on Nawaz Sharif, condole demise of Begum Kulsoom