Colin Griffin (born 3 August 1982) is an Irish race walker who has competed in the Olympics.

[n 1] He returned home from an altitude training camp high in Sierra Nevada in Spain to win Athletics Ireland 10 km walk.

It was his first national 10 km track title, winning in a time of 41.47.66 at Morton Stadium, Santry, Dublin.

[4] Griffin was disqualified at the 38 km mark at the 2012 Olympics while he was in contention for a top 16 performance and a personal best time by several minutes.

However, that same day Laura Reynolds, who he had coached, finished 20th in the women's 20 km walk in her first Olympic Games.