Deontez is of African origin, meaning 'fifth' in Swahili. It gained popularity in the United States during the late 20th century and early 21st century, often used as a variant spelling of Deontay.
The name Deontez has seen varying popularity over the years, with a total of 109 babies given this name between 1989 and 2013. The name's peak was in 1996, when it was bestowed upon 10 newborns. However, it seems to have lost favor subsequently, with only 5 births each in the years 2001, 2003, 2004, and 2009.