David Barnhill (born 8 June 1969)[3] is a former Ireland international rugby league footballer who played as a Second row forward in the 1980s, 1990s and 2000s.

A Canberra junior, Barnhill made his first grade début with the Raiders late in the 1989 season as a replacement in a match against the South Sydney Rabbitohs.

He became a more regular first grader the following year, primarily used off the interchange bench and was a member of the Raiders' victorious 1990 Grand Final side.

The following year he appeared in games II and III and he entered Origin folklore when footage of the all-in brawl of game II showed him standing and slugging it out blow for blow with Queensland's Billy Moore long after the rest of the melee had calmed down.

After retiring as a player Barnhill returned to Australia to take-up a position as defensive coach with the ACT Brumbies rugby union club in 2001.