Nii, pronounced as "knee-e," is a Ghanaian male given name of Akan origin. It is derived from the word "ni," which means "king" in the Akan language Twi. This name signifies royalty and is often given to boys born on Thursdays according to the Akan calendar system called Akwanbo. The name Nii is also frequently used as a title of respect for chiefs and elders within the Ga people, who are an ethnic group from present-day Ghana's Greater Accra Region. It is customary for members of the Ga community to address their chiefs and elders using this title, even if they do not share the given name Nii.
"The name Nii saw a notable rise in popularity from 1978 to 1999, with an average of about 7 births per year during this period. However, there was a significant decrease in the frequency of this name after the year 2000, with only five births each in 2002 and 2006, and six births in 2014. Overall, there were 57 children named Nii born between 1978 and 2014."