Do I get Priority Boarding if I have a disability or require assistance at the airport?

No. Ryanair does not pre-board passengers. 

If you wish to be one of the first customers to board the flight, we suggest that you purchase Priority Boarding, subject to availability.

If you require support during boarding, this will be provided according to the Assistance service requested and the airport’s boarding procedures on the day. If you need assistance at the airport or when boarding the aircraft, you must ensure Assistance is added to your booking.