Aswathi Thirunal Gouri Lakshmi Bayi (born 1945) is a member of the Travancore Royal Family and a prolific author who writes in both English and Malayalam. She has authored works covering Kerala temple architecture, Travancore culture, Indian heritage, and poetry, and was awarded the Padma Shri in 2024. Her Malayalam work രുദ്രാക്ഷമാല (Rudraaksha Maala), published in 2014 by The State Institute of Languages, Kerala, is among her contributions on spiritual themes.