The name Berthel is of Germanic origin, derived from the Old High German 'Berhthelm', which is composed of two elements: 'berht' meaning bright or famous, and 'helm' signifying helmet. This name was popular during the Middle Ages but has become less common in recent times. It is a unisex name, though it's more frequently associated with males. In some languages, such as French and Dutch, Berthel may be transcribed as Berhtel or Berthold.
The name Berthel appears consistently popular over the years, with six births recorded each in 1915, 1918, 1925, 1929, and 1930, totaling to thirty births in all.