Adam Griffiths is an Australian professional football manager who currently serves as the Assistant Coach of Wellington Phoenix. He is a former professional football (soccer) player and Socceroo. Since 2020 he has been Head Coach of National Premiere Leagues NSW side Manly United. In 2022 he turned a difficult season around to come 2nd in the Premiership equal on points to first but missing out by one goal difference. He then took the team into the Grand Final against Blacktown. Adam was awarded Coach of the year 2022 at the Football NSW Gold Medal Awards. In July 2022 he was appointed to the A- League as Assistant Coach under Mark Rudan at The Western Sydney Wanderers.

Wellington Phoenix Football Club is a professional football club based in Wellington, New Zealand. It competes in the Australian A-League, under licence from Football Federation Australia. Phoenix entered the competition in the 2007–08 season after its formation in March 2007, by New Zealand Football to replace New Zealand Knights as a New Zealand-based club in the Australian A-League competition. Since 2011, the club has been owned by Welnix, a consortium of seven Wellington businessmen.