Afia is one of the Akan Twi + Fante feminine names — central to traditional Ghanaian heritage. The Akan day-name system is one of the African naming traditions: Akosua/Akwasi (Sunday), Adwoa/Kwadwo (Monday), Abena/Kwabena (Tuesday), Akua/Kwaku (Wednesday), Yaa/Yaw (Thursday), Afia/Kofi (Friday), Ama/Kwame (Saturday).
Afia does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Afia reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.