Heather Clare Knight OBE (born 26 December 1990) is an English international cricketer and former captain of the England women's cricket team. She is a right-handed batter and right arm off spin bowler. Knight played in her 100th Women's One Day International match for England in December 2019.

Knight was born on 26 December 1990 in Rochdale and was educated at Plymstock School, a state secondary school in Plymouth, Devon. She was offered a place at the University of Cambridge to study natural sciences, but turned it down so that she would have the time to play cricket. She went on to study Biomedical Sciences at Cardiff University.

Knight played club cricket for Plymstock Cricket Club in the Devon Cricket League. She started attending colts training sessions at 8 years old and progressed through the club's youth system.

Knight is a prolific batter at county level, initially for her home county of Devon and currently for Berkshire. She topped the county run scoring aggregates in both 2008 (390 runs) and 2009 (622). She also played for the Diamonds, Sapphires and Emeralds in the Super Fours.

Knight captained Western Storm in the now-defunct Women's Cricket Super League, leading them to the title in 2017 and 2019. She was the competition's leading run-scorer across its four seasons. She continued to play for Western Storm in the Rachael Heyhoe Flint Trophy in 2020.

Knight has played domestically in Australia, previously for Tasmanian Roar and Hobart Hurricanes and currently for Sydney Thunder. She won the Women's Big Bash League in her first season with the Thunder, top-scoring with 26* in the final. In 2021, she was drafted by London Spirit for the inaugural season of The Hundred. In April 2022, she was bought by the London Spirit for the 2022 season of The Hundred.

In the inaugural season of the Women's Premier League in 2023, Knight was bought by Royal Challengers Bangalore (RCB) at the price of 40 Lakhs.

Knight joined Somerset in November 2024.