The 42-year-old gave fans some of their most memorable moments, from winning the Irish Cup twice to beating Ole Gunnar Solskjaer’s Molde (with a certain Erling Haaland up front) at Mourneview Park, and recorded four third-placed Premiership finishes.
He ensured the Lurgan-based club finished in the top-seven in 10 of his 11 full campaigns in charge and helped numerous players secure moves across the water.
Here are some of the best moments of Hamilton’s tenure in pictures.
13. Famous European night
Perhaps their most famous European evening, Hamilton celebrates with goalscorer Josh Daniels after the Lurgan Blues defeated Ole Gunnar Solskjaer's Molde side 2-1 at Mourneview Park in July 2018 Photo: David Maginnis/Pacemaker Press
14. Incredible record for developing players
Hamilton had an exceptional record for developing players during his Glenavon tenure. Here he celebrates with Mark Sykes during their 5-0 Irish Cup win over Portadown at Shamrock Park in March 2017. Sykes has went on to play in the Championship with Bristol City and represent the Republic of Ireland, while Joel Cooper, Josh Daniels, Rhys Marshall and Bobby Burns are just another few examples of stars who sealed big moves after working under Hamilton Photo: Tony Hendron/Presseye
15. Fine goalscorer
One of the finest Irish League strikers of his generation, Hamilton scored his final Premiership goal in a 2-1 victory over Glentoran at The Oval in February 2019. He brought himself on as a substitute twice last season (2022/23) and registered an assist in a 1-1 draw with Carrick Rangers Photo: Jonathan Porter/PressEye