In 2003, Georgallis became the head coach of the
Greece national rugby league team and the
Western Suburbs Magpies SG Ball Cup team. On 31 August 2003, he coached Greece in their first rugby league Test match, a 26–10 win over
New Caledonia in
Sydney. In 2004, he became head coach of the Magpies
NSWRL Premier League team. In 2006, Georgallis joined the
Penrith Panthers as an assistant coach and head coach of their NSWRL Premier League feeder club, the
St Marys Cougars. In 2008, he became coach of Penrith's
National Youth Competition under-20s team, finishing fourth and taking them to the finals. On 20 June 2011, it was announced that Georgallis would take over as interim head coach of the
Penrith Panthers following the resignation of
Matthew Elliott. He had immediate success, defeating the
North Queensland Cowboys 30–20 in his first game in charge. Georgallis had won his first two games when it was announced that
Phil Gould had chosen
Ivan Cleary to be the Penrith coach from 2012 onwards. The Penrith club won just two of the remaining nine games of the season. In 2012, Georgallis joined his former club, the
Wests Tigers, as an assistant coach. In 2014, Georgallis joined the
Manly Warringah Sea Eagles as an assistant coach, spending two years at the club. In 2016, he re-joined Penrith as the club's
NSW Cup head coach. On 15 December 2016, Georgallis was named as head coach of the
Canterbury-Bankstown Bulldogs for the 2017 season. Georgallis led the side to a Top 4 finish and a finals appearance. On 26 October 2017, he was promoted to assistant coach of the Canterbury
NRL side while remaining as their
NSW Cup head coach. In 2018, Georgallis led Canterbury-Bankstown to
Intrust Super Premiership and the
NRL State Championship victories. On 6 November 2018, he was named as an assistant coach of Canterbury-Bankstown on a full-time basis. In November 2019, Georgallis'
Greece side qualified for the
2021 Rugby League World Cup, the country's first
Rugby League World Cup qualification. On 14 July 2020, following Canterbury's Round 9 loss to the
Brisbane Broncos, Georgallis was named as the club's interim head coach for the remainder of the
2020 NRL season, following
Dean Pay's resignation. In Round 11, Georgallis earned his first win as Canterbury-Bankstown head coach, defeating the
Newcastle Knights 18–12 in his second game in charge. In Round 19, Canterbury-Bankstown defeated
South Sydney 26–16, helping them to avoid the
wooden spoon. Following the appointment of
Trent Barrett as Canterbury head coach for the
2021 NRL season, Georgallis left the club. On 30 October 2020, Georgallis joined the
North Queensland Cowboys as an assistant coach under head coach
Todd Payten. Georgallis coached Greece at the
2021 Rugby League World Cup where
Greece were placed in the hardest group of the Minnows with semi finalists
England and finalists
Samoa in their pool, failing to win a match but playing valiantly against all especially the
French who have played rugby league at the top level for over 70 years. On 22 November 2023, the
Parramatta Eels announced the appointment of Georgallis in a dual role as their
NRLW coach and Coaching Director of the club's Elite Pathways program. ==References==