Claire Hardaker (born 16 January 1981) is a British linguist. She is senior lecturer at the Department of Linguistics and English Language of Lancaster University, United Kingdom. Her research involves forensic linguistics and corpus linguistics. Her research focuses on deceptive, manipulative, and aggressive language in a range of online data. She has investigated behaviours ranging from trolling and disinformation to human trafficking and online scams. Her research typically uses corpus linguistic methods to approach forensic linguistic analyses.