Natalie 'Nat' Haythornthwaite (born 9 December 1992) is an English netball player. She was part of the England squad that won gold at the 2018 Commonwealth Games. Haythornthwaite played for Manchester Thunder and Wasps Netball in the English Superleague, winning consecutive premierships with the Wasps in 2017 and 2018. She played for the New South Wales Swifts in the Australian Super Netball league as a replacement player for some games in late 2018, before being permanently picked up by the Swifts for the 2019 season. Despite an injury-interrupted start to the season, Haythornthwaite was selected in the England 12-player squad for the 2019 Netball World Cup. She signed a contract extension with the Swifts through to the end of the 2020 season.