England cricket great Jenny Gunn has joined NSW Breakers as an assistant coach for the upcoming Women's National Cricket League season.

An allrounder, Gunn played 259 matches for England across three formats in an international career that spanned 15 years before her retirement in October 2019.

Gunn, 36, holds the distinction of being the first cricketer, male or female, to reach 100 T20Is and has taken the second most catches of any women's T20I player.

In her first full-time coaching role, Gunn will work with head coach Gavan Twining and assistant Grant Lambert to help the Breakers recover from their sixth-placed finish in the most recent WNCL season.

Gunn will also take an active role in the Breakers' pathways system.

"I did some coaching career development with the Breakers before the pandemic and so I am familiar with most of the players in the system," Gunn said.

"This is something that will certainly help with the transition into this role, and I'm excited to see how far the players have progressed over the last few years."