Sir John Brewer Davis (born 1741 in England; died 9 November 1817 in Westminster) was the son of the Rev Dr D Davis Prebendary of Cantebury. He is notable for his involvement in first-class cricket through his connections with the Kent county team. In 1774, he sat on a committee of gentry that laid down the first known laws of cricket. He was a noted amateur player during the 1760s and until 1773.
Davis was mainly active as a player before cricket's statistical record began in 1772. In the 1773 season, he has been recorded in two first-class matches playing for Kent against Surrey. He scored 23 and 4 in the first match at Laleham Burway; and 4 and 0 in the return game at Bishopsbourne Paddock. He took 2 catches in the latter match.