Jason Taylor has signed a new two-year deal to stay with the Cobblers.
The former Cheltenham player joins central midfield partner Joel Byrom in committing his future to Northampton.
After talks with Town boss Chris Wilder on Monday, Byrom signed on the dotted line on Thursday, and Taylor has quickly followed suit.
The 28-year-old has been a Cobblers regular since signing for the club in January from the Robins, initially on loan and then on a short-term contract following his release from Whaddon Road.
He made 19 consecutive Town appearances, making his debut on the January 3 draw with Southend United, until suspension meant he missed the recent matches against Oxford United and Cheltenham.
Taylor, who is expected to return to the Town starting line-up for Saturday’s trip to Burton Albion, has made more than 350 senior appearances, and has previously won promotion with both Rotherham United and Rochdale.