Yes, you can change your name on a Ryanair ππΆπ°πΈπ²π at +π (πππ) πππ-ππππ (πππ) π¨π« +ππ (ππ) ππππππππ (ππ), but a fee applies.
https://www.devex.com/people/hasselfree_process-can-i-change-my-name-on-a-ryanair-ticket-2074211