Manly Warringah Sea Eagles In 2004, Des Hasler was appointed
head coach of the
Manly Sea Eagles. In the
2005,
2006 and 2007 seasons he led the team to the
semi-finals for the first time since the late 1990s. Hasler gained the experience of
Geoff Toovey as assistant coach in the 2007 season. The team was a contender in the 2007 National Rugby League premiership, and finished second on the NRL ladder, losing the grand final 34–8 to the
Melbourne Storm. He coached Manly to a record-breaking 40–0
2008 NRL Grand Final victory over the Melbourne Storm. In 2008, Hasler was named the Rugby League International Federation's Coach of the Year at the
RLIF Awards. After failing to win the
1987 World Club Challenge with Manly as a player, he won it with them as coach in 2009. Hasler took Manly to the finals again in 2009 and 2010, but lost a final in each year to be eliminated from the finals. He coached his 200th first-grade game on 13 August 2011 when Manly defeated their traditional rivals
Parramatta 26–20 at
Parramatta Stadium. The win was also Hasler's 117th win as a coach. In 2011, Manly finished second on the NRL ladder. Manly defeated
North Queensland 42–8 at the
Sydney Football Stadium for their first finals win since 2008. Manly went on to win the
2011 NRL Grand Final. He was named coach of the year at the RLIF Awards. A week after leading Manly to the 2011 premiership, Hasler signed to coach the
Canterbury Bulldogs in the 2013 season. He initially agreed to continue to coach Manly for the 2012 season, but on 11 November 2011, Manly's board of directors sacked him, alleging "serious breaches" of his contract with rumours rife of the breaches including enticing staff and players to join him at the Bulldogs from 2013. A number of Manly's coaching and administrative employees had announced they would be joining Hasler at Canterbury.
Canterbury-Bankstown Bulldogs in 2015 Hasler joined Canterbury on 14 November 2011 as head coach for the
2012 NRL season. He had immediate success as he took the club to finish eight places better than the previous season to the top of the ladder and collected the minor premiership. After impressive qualifying final and preliminary final wins, 16–10 over former club
Manly Sea Eagles and 32–8 over
South Sydney Rabbitohs, respectively, the club were beaten in the Grand Final by the
Melbourne Storm 14–4. At the
2012 Dally M Awards Hasler was named the NRL's coach of the year. In the
2014 NRL season, Hasler led Canterbury to the
2014 NRL Grand Final, and lost 30–6 to
South Sydney at
ANZ Stadium. In the 2016 NRL season, Canterbury finished two places lower than the previous season as they finished in seventh place, the same position they managed to reach the Grand Final from two years earlier, but those hopes of a 2014 repeat were crushed in the qualifying elimination final where the Bulldogs after leading 6–4 at half-time but suffered a 28–12 defeat by the
Penrith Panthers at the Sydney Football Stadium after which, straight away, Canterbury bowed out of the finals series. On 19 September 2017, it was announced by the
Canterbury Bulldogs that Hasler had been released. On 1 December 2017, it was announced that Hasler was taking Canterbury to court and was seeking $2 million in damages after he was terminated by the club despite signing a two-year contract extension earlier in the season. On 4 May 2018, Hasler and Canterbury reached an out-of-court settlement for an undisclosed sum of money. Canterbury issued a statement saying "After a great deal of discussion over the last couple of months, the Bulldogs are pleased to have reached an agreement with Des Hasler. It was important for the club to be able to bring this matter to a close and move forward. Our members and fans deserve that."
Manly Warringah Sea Eagles On 22 October 2018, Hasler was announced as the new head coach of Manly for the 2019 season. Before the start of the
2019 NRL season, many predicted that Manly would finish outside the top 8 and struggle towards the bottom of the table. Throughout the season, though, Manly surprised many critics by spending nearly the entire regular season in the top 8 which included the club defeating Melbourne at
AAMI Park 11–10 in
golden point extra-time and also defeating other premiership contenders Canberra twice throughout the year. Hasler eventually guided Manly Warringah to a sixth-place finish as the club qualified for the finals. Hasler guided Manly to the second week of the finals series in 2019 as the club were defeated by
South Sydney 34–26 in the elimination semi-final at
ANZ Stadium. In the
2020 NRL season, Hasler failed to guide Manly to the finals as they finished a disappointing 13th on the table. The
2021 NRL season started in similar fashion with the club losing their opening three games. In round 4, Manly were defeated 46–6 against Penrith at
Brookvale Oval; this was Manly's biggest-ever loss at their home ground in their 74-year history. Manly under Hasler then went on to win their next 16 of 21 games to finish in the top 4 and qualify for the finals. Manly went on to reach the preliminary final but were defeated by
South Sydney. In the
2022 NRL season, Manly endured a poor season finishing 11th on the table. On 13 October 2022, Hasler was terminated as Manly head coach.
Gold Coast Titans On 22 June 2023, Hasler was announced as the new head coach of the
Gold Coast Titans, commencing in 2024. In round 1 of the
2024 NRL season, Hasler's reign at the Gold Coast got off to the worst possible start as the club lost 28–4 against
St. George Illawarra who were tipped by many pundits to finish with the
wooden spoon before the season began. Hasler lost his opening six games as Gold Coast head coach before finally earning his first win in charge of the club against the New Zealand Warriors in round 8. In round 16, Hasler guided the Gold Coast to a 66–6 victory over the New Zealand Warriors. It was the clubs biggest-ever victory and the biggest victory of any Gold Coast side since the first one entered the competition back in 1988. The Gold Coast also recorded the biggest victory by a team running last across the 114-year history of top-flight rugby league in Australia. In his first season in charge of the Gold Coast, Hasler took the club to a 14th-placed finish on the table. In round 21 of the
2025 NRL season, Hasler coached his 500th first grade game as the bottom placed Gold Coast side upset New Zealand 24–16. On 25 August 2025, the Gold Coast club announced that Hasler would depart as head coach at the end of the season despite being under contract until the following season, the club then announced that
Josh Hannay would be taking over as head coach from 2026. In Hasler's final game as coach of the Gold Coast, the club won their final match of the
2025 NRL season against the
Wests Tigers, which ultimately resulted in Gold Coast narrowly avoiding the wooden spoon on for and against. Despite media speculation that Hasler would retire following the end of his tenure at the Gold Coast, Hasler refuted these claims, stating he would head back down to
Sydney and assess future options.
Statistics == Honours ==