In 2009, he was appointed assistant coach of the Australian Men's Hockey Team (Kookaburras). During this time he was given the opportunity to take on the head coach position for the Champions Trophy in Melbourne in 2012. He guided the team to their 5th consecutive Champions Trophy gold medal. In October 2013 he was given another opportunity to lead the Kookaburras at the Oceania Cup in Stratford, New Zealand. Here the Kookaburras won the Oceania Cup by defeating New Zealand 5 - 2 in the final and qualified for the 2014 World Cup in Den Haag. . In 2014 he and Paul Gaudoin co-coached the Kookaburras to a gold medal at the Commonwealth Games in Glasgow. In September 2014 he was announced as the head coach of the Kookaburras following the retirement of Ric Charlesworth. During 2015 the Kookaburras continued their successful reign as world number 1 with qualification for the 2016 Rio Olympics by winning the World League Semi-Final tournament in Antwerp after beating Belgium after the final whistle. The World League final was held in December 2015 in Raipur, India. Australia again was victorious in the final of this competition defeating Belgium again, capturing the only World title to have alluded Australia. On 21 November 2015 Graham was inducted into the Queensland Hockey Hall of Fame. In the Olympic year, the Kookaburras won the 14th Champions Trophy held in London in June 2016. It was Reid's 2nd Champions Trophy title as head coach. It finished controversially after Australia defeated India in the final after sudden death penalty shootouts (3-1). After the
2016 Summer Olympics, he stepped down as the Australia head coach and in 2017 he became the head coach of his former club Amsterdam and the assistant coach of the Dutch national team. In March 2019, he was dismissed as Amsterdam coach after an 8–2 loss to
HGC in the league and alleged interest from the
Indian national team for his services. == Coach of Indian men's team ==