Gareth Johnson (born in Ballygalget, County Down) is an Irish sportsperson. He plays hurling with his local club Ballygalget and football for Loughinisland and has been a member of the Down senior inter-county hurling and football teams. Johnson scored an injury-time goal in the 2013 Christy Ring Cup final to win it for Down for the first time in a 3-16 to 2-17 victory against Kerry.
Honours
- Down
- Ulster Under-21 Hurling Championship (2): 2003, 2004
- National Hurling League Division 2 (1): 2004
- Christy Ring Cup (1): 2013
- Club
- Down Senior Hurling Championship (7): 1999, 2003, 2004, 2005, 2007, 2008, 2010
- Ulster Senior Club Hurling Championship (1): 2005