Obabiyi Aishah Ajibola, 21, won the World Muslimah 2013 title on Wednesday.
Twenty finalists showed off Islamic fashions and worked to demonstrate religious values during the contest, reports the BBC.
The pageant was held before the upcoming Miss World competition, which has drawn protests from hardline Indonesian Muslim groups.
Finalists in World Muslimah were chosen from more than 500 who took part in an online selection process.
One of the rounds involved contenders comparing stories of how they came to wear the hijab (Muslim headscarf) – a requirement for all those taking part.
The finalists hailed from countries including Bangladesh, Iran, Malaysia, Nigeria and Brunei.
In the run-up to the final, contestants underwent three days of “spiritual training”, waking before dawn to pray together and to study the Koran.