Traditional names in Ghana vary by ethnic group, which this list ignores.
There are many ethnic groups in Ghana, West Africa. Many of them name their newly born children depending on the day of the week on which the child had been born, but other names are used, like those based on birth order or hopes for the future. So, no, a group does not have just eight names per gender. Many West Africans used to have an eight-day week before the seven-day one was imposed by European colonizers, so some hung on to all their day-names by splitting a day, so that children born in the daytime use one day-name, and those in late afternoon or night another one.
The following are some of the day-names, lumping together several unidentified traditions that would never trade names.
Kosi/Akwasi/Kwasi/Kwesi/Sisi — a boy born on Sunday
Akosua/Esi/Asi — a girl born on Sunday
Kwadwo/Kojo/Jojo/Kudjoe/Kwadzo/Kwedzo — a boy born on Monday
Adwoa/Adjoa/Ajoba/Adjo/Adzoa/Edzoa — a girl born on Monday
Kwabena/Ebo/Kobina/Kobby/Kobla/ Kwabla — a boy born on Tuesday
Abena/Araba/Abla — a girl born on Tuesday
Kwaku/Kweku/Kuuku/ Kwaku — a boy born on Wednesday
Akua/Ekua/Akuba/Aku/Kukua — a girl born on Wednesday
Ekow — a boy born on Thursday
Yaw/Yao/Yawo/Awo — a boy born on Thursday
Yaa/Aba/Yawa/Yaba/Yaayaa — a girl born on Thursday
Kofi/Fiifi/Yoofi — a boy born on Friday
Afua/Efua/Efie/Afia/Afi — a girl born on Friday
Kwame/Kwami/Komi/Ato/Atoapem/Kwamena — a boy born on Saturday
Ama/Amma — a girl born on Saturday