It ends speculation that he could be on the move next year.
Ireland scrum-half Kieran Marmion has signed a new three-year contract with Connacht.
There had been speculation that the 27-year-old would look to leave the Sportsground after being left out of Ireland's squad for the Rugby World Cup.
Connacht head-coach Andy Friend says Marmion has been an "outstanding player" for his side and that the extension will help the province compete at the "highest level".
James Gormley Named On Irish Squad For FIBA EuroBasket Qualifiers
Portlaoise Panthers Suffer Tough Defeat In Super League
CCFL: St Peter's Extend Their Advantage At Top Of Premier Division
NFL: Relegation Firmly On The Cards For Offaly
Laois "Devastated" By Defeat Despite Delivering "Manliness" - Justin McNulty
Westmeath Ladies Bag First Win Of League Season
Big Camogie Wins for Westmeath and Laois Over The Weekend
Fitzgerald "Relieved" After Squeaking Past Kerry
NHL: Galway Prove Too Strong For Offaly
Former Laois And Offaly GAA Manager Honoured By An Garda Síochána
Athlone Town Make It Two Wins From Two In First Division
Lee Fitzpatrick Scores Try For Ireland U20s In England
NFL: Westmeath Move Closer To Promotion
Shane Lowry Finishes Strong In California
Westmeath Drifter Sets Sights On Success In 2026
Offaly’s Alex Dunne Joins Alpine’s Young Driver Programme
NHL: Laois And Kerry Clash In Division Two
Shane Lowry Cards Opening Round 73 At Genesis Invitational
Athlone Town Aiming For Back To Back League Wins