Dannel is of Hebrew origin and means 'judge'. It is an alternate spelling of the more common Daniel, which shares the same meaning.
"The name Dannel experienced peaks in popularity during the late 1970s to early 1980s, with seven births each in 1979 and 1983, totaling 42 births in those years alone. However, it appears that its popularity has since declined, with only five or six births per year from the late 1980s onwards."