The opposition United Democratic Party (UDP) had challenged the results of the 4 December election that saw Mr Barrow win with 53% of votes.
The UDP had said the vote was marred by widespread irregularities.
On Monday, the Supreme Court upheld its 28 December ruling, dismissing the opposition's petition.
Mr Barrow is a successful property developer who once worked as a security guard in London. He sprung a major surprise by defeating Yahya Jammeh during the last presidential vote in 2017.
Mr Jammeh's 22-year rule was marked by allegations of abuse, with witnesses telling a truth commission after he went into exile about state-backed execution squads and Aids patients being forced to take bogus cures.
Ten male prisoners in the Democratic Republic of Congo have been found guilty of raping female inmates and trying to escape during a riot at a prison.
The court in the city of Lubumbashi ordered them to serve an additional 15 years in prison and to pay $50,000 (£37,000) in compensation to the 19 victims who took the case to court.
The riot took place in Kasapa prison in 2020.
Although some were too frightened to give evidence, more than 30 women testified before a military prosecutor that they had been raped.
At least seven of the victims became pregnant and some contracted sexually transmitted infections - including HIV.
Most of the women are still serving prison sentences after being transferred to a different facility.
Ethiopia frees fourth journalist from detention
The authorities in Ethiopia have released Maaza Mohammed, a journalist who was detained more than a month ago under state of
Ms Maaza - who co-founded YouTube news outlet Roha Media - had been critical of the government
prior to her detention. She has not been charged with any offence.
She is the fourth journalist to be released from
Tesfalem Tekle, a correspondent for the Kenyan-based Nation
Media Group, was released earlier this week after 77 days in detention.
granted bail by a court in early November but police had kept him in custody.
Also freed in recent days have been Ermias Tesfaye, a journalist at the
online Ethiopia Insight, and Abdusalam Hassen, formerly with the Oromo Media
The Committee to Protect Journalists (CPJ) had accused the government of using the state of emergency to arrest reporters.
Earlier this month, key opposition
figures, including some from the Tigrayan People’s Liberation Front (TPLF) - the
group at war with the government for the last 14 months - were freed and charges against them withdrawn.
Tanker drivers play football amid Uganda fuel crisis
A video of lorry drivers playing football at the Uganda border has prompted hilarity and exasperation as the country experiences a fuel crisis.
In the short clip, which is being widely shared online, fuel tankers can be seen queuing up along a road as drivers strip down to their vests to pass time kicking around a ball.
It was first shared two days ago when tweeters said the footage was shot at the Malaba border between Uganda and Kenya.
A court in Mozambique has sentenced the leader of a poaching gang to 30 years in prison.
Judges in Maputo Province found Admiro Chauque guilty of illegal possession of weapons, and numerous poaching offences in southern Mozambique, as well as in South Africa's Kruger National Park.
He was arrested trying to poach rhinos in May last year.
There is a strong demand for rhino horn in China and Vietnam.
The court also gave a nine-year sentence to a man who was caught laying traps to catch animals in Maputo National Park.
In recent years the judiciary in Mozambique has imposed heavy penalties on poachers and people transporting the protected animals.
Ethiopia's iconic resistance singer Nuho Gobana dies
BBC Afaan Oromoo
Ethiopians are mourning pioneering
musician Nuho Gobana, who has died aged 74 after a long career that saw him
produce timeless classics, including many songs urging the Oromo people to find their strength and unite to demand change.
The Oromo ethnic group, despite being Ethiopia’s largest, was marginalised by successive Ethiopian rulers until Prime Minister Abiy Ahmed came to power a few years ago.
Nuho had been ill for some time - and when his fans realised the seriousness of his situation a few months ago, they bought him a house in Adama, east of the capital, Addis Ababa, where he died on Tuesday night.
During the Marxist military dictatorship of the 1980s, the musician left Ethiopia, living as a refugee in a number of countries including Djibouti, Saudi Arabia, and Canada.
''Back then, Nuho was doing songs to empower his people. His music was easily memorable,'' his long-time friend and notable musician Elemo Ali recalls of their life in Saudi Arabia.
Another of his friends, Abdo Alisho, has spoken of how powerful his songs were: “They made you love your country. Nuho lived for his people.”
He went on to influence younger Oromo singers like Hachalu Hundessa, who was killed in 2020 and whose songs had become anthems in a wave of protests that led to the downfall of Mr Abiy’s predecessor.
Nuho didn’t just sing in Afaan Oromoo, writing lyrics in other Ethiopian languages and in Arabic when he was abroad.
Speaking to the BBC from his hospital bed two years ago, the musician had the same message to his fans: ''Keep your unity strong.''
One of his most famous songs was Tokkummaa, which means unity in Afaan Oromoo - and which was also the title of a popular Hachalu hit.