Polina Leopoldovna Bayvel CBE FRS FREng FInstP (Russian: Полина Леопольдовна Байвель; born 14 April 1966) is a British engineer and academic. She is currently Professor of Optical Communications & Networks in the Department of Electronic and Electrical Engineering at University College London. She has made major contributions to the investigation and design of high-bandwidth multiwavelength optical networking.