Dibb has signed a two-year extension running through the end of the 2026 season, while Harden has re-signed for the 2024 campaign.
A former NSW State of Origin half, Dibb was a revelation in the Cowboys’ maiden NRLW season.
Dibb appeared in every minute of all nine games for North Queensland, registering a team-high five try assists.
The 26-year-old has appeared in 27 games over the course of five NRLW season, including the 2022 grand final victory for the Newcastle Knights.
One of the few players to have appeared in every season of the NRLW competition, Harden provided invaluable experience and leadership for a young Cowboys squad in the inaugural season.
On the field, Harden was a model of consistency for North Queensland. The veteran prop played in all nine games, averaging 82 running metres and 15 tackles per game.
Harden has registered 27 games across six NRLW seasons and has also appeared for Queensland, Australia and the Indigenous All Stars.
“We’re very pleased to extend Kirra. She is a marquee half in the game and truly invested in what we’re trying to develop up here in North Queensland,” Cowboys NRLW Head Coach Ben Jeffries said.
“She is highly driven on and off the field and is great role model for players aspiring to be in the NRLW.
“Being one of our co-captains, Kirra will also assist in developing our younger halves coming through our pathway.
“With Tallisha it was evident her leadership was going to be priceless throughout our inaugural season.
“This is one of the main reasons why we have re-signed Tallisha as she’ll assist in nurturing some of our younger forwards coming through in the hope they grasp the weekly habits and expectations required to be successful at NRLW level.
“Tallisha brings out the best in people and embodies the values we embrace at the Cowboys embrace.”