Jennifer Helen Brister is a British stand-up comedian, writer and actor from London.

Brister studied drama at Middlesex University, London, where, in the mid-1990s, she took a course in stand-up comedy, the only one of its kind at the time in the UK. Other famous graduates include Alan Carr, Dan Renton Skinner of the Dutch Elm Conservatoire and Shooting Stars, and Clare Warde of the Runaway Lovers. Brister's first gig was at the end of her third year at university in 1996, at the King's Head in Crouch End, London.

She has performed internationally including at the Melbourne Comedy Festival in 2011 and 2014, at the Adelaide Festival in 2011 and 2012, as well as numerous times at the Edinburgh Festival. She regularly performs at clubs around the UK including Banana Cabaret, The Comedy Store (London), the Glee Clubs, Frog & Bucket, and Up the Creek. She toured the UK for the first time in 2018 with her show Meaningless. Since 2022 she has been touring the UK again with her show The Optimist.

Her comedy hero is Victoria Wood.