Jennie Jacques (born 28 February 1989) is an English actress. Her first major role was as Annie Miller in Desperate Romantics, a six-part BBC Two television drama serial about the Pre-Raphaelite Brotherhood that was broadcast in July and August 2009. From 2013–2014 she played the lead role of WPC Gina Dawson on the BBC television series WPC 56. Since 2015 Jacques has played the recurring role of Saxon Queen Judith on the television series Vikings.
Jacques was born in Walgrave Hospital and grew up in Coventry, Leamington Spa and Warwick.
Jacques played Katie Fielding in the ITV police series The Bill and artists' model Annie Miller in the BBC Two period drama Desperate Romantics. She was cast as Beth in the home invasion urban thriller Cherry Tree Lane and Ree Ree in the futuristic thriller Shank. Jacques has also appeared in Casualty on BBC1, where she played Lily Knowles, the carer of Megan Roach, in the episode: "Nice and Easy Does It" broadcast on 7 August 2010.