The NatWest Women's T20 Quadrangular Series was a women's Twenty20 International series which took place in England in 2011.[1] The top four ranked teams in the world competed: Australia, England, India and New Zealand. The tournament consisted of a round-robin group stage, in which England and Australia finished as the top two, and then a third-place play-off and a final were contested to decide the final positions. England defeated Australia by 16 runs in the final.[2] The tournament was followed by an ODI Quadrangular Series, with the same teams competing.[3]