Bára Gísladóttir (born 1989) is an Icelandic composer and double bassist, based in Copenhagen. She often performs with longtime collaborator Skúli Sverrisson. She is the double bassist of Elja Ensemble. Bára has said that her work is concerned with the qualities of sound.

Born in Reykjavík on 21 November 1989, Bára played the violin from an early age, specialising in double bass from her teens onwards. She studied composition at the Royal Danish Academy of Music where she completed a master's degree and an Advanced Postgraduate Diploma under the guidance of Niels Rosing-Schow and Jeppe Just Christensen. Prior to that she studied composition at the Milan Conservatory with Gabriele Manca and earned a bachelor's degree at the Iceland Academy of Arts with Hróðmar I. Sigurbjörnsson and Þuríður Jónsdóttir.