Hasler will exit as the sixth-most experienced coach in NRL history, with his career tally currently at 506 games with a win rate of 53.6%.
It was reported earlier in the season that Hasler had a series of performance clauses in his contract, which was set to expire at the end of 2026, including a requirement to make the finals in 2025 after a pair of bottom-half finishes in 2023 and 2024.
Hasler replaced Justin Holbrook in late 2022 but has been unable to turn the battling club's fortunes around, and his fate in reality was sealed weeks ago with the Titans wedged to the bottom of the NRL ladder for quite some time now with just five wins from 22 games.
The Titans released a statement on Monday morning thanking Hasler for his three years of service.
"Hasler came to the Titans with an extraordinary coaching pedigree, having reached five grand finals and won two premierships," it read.
"While the results this season are not what had been hoped, during his time at the Titans, Hasler has demonstrated the professionalism and dedication that has made him one of the game’s most respected coaches.
"His commitment to developing the playing group and his meticulous approach to preparation have been exemplary, despite the challenging circumstances and ladder position."
Hasler will retain control of the team for its Round 26 and Round 27 fixtures against the Dolphins and Wests Tigers, and whilst there are no immediate vacancies elsewhere in the league for Hasler to step into, it's likely he'll remain a highly sought after commodity in 2026 and beyond.