Davidjohn is of Hebrew origin, meaning 'Beloved'. It is composed of two elements: 'David', which means 'beloved' and is derived from the Bible, and 'John', also meaning 'graced by God' or 'gift of God'. This name has been popular throughout history and across cultures. It gained prominence in England during the Middle Ages, brought there by the Normans who used it to denote their ruler, King David I of Scotland.
"The name Davidjohn saw peaks in popularity with six births each in 1990 and 1993, but its usage was notably lower in the preceding year of 1989 with only five births recorded."