Tilly Lockey is a British social media personality and amputee, born on October 7, 2005. She lost her hands to meningitis at 15 months old and has since worked with prosthetic companies to advance bionic arm technology. Lockey is a Co-Designer and Co-developer of Open Bionics' Hero Arm and Hero PRO, actively co-creating bionic arms.

Beyond her work in technology, Lockey is a prominent public figure. She is a motivational speaker, TV personality, content creator, model, presenter, and singer.