Yep, they sure do. At the airline I retired from, and every other major airline I've ridden on, the lead flight attendant receives a printout of every name of every passenger on the aircraft along with their assigned seat.

Yes, flight attendants have access to a digital Passenger Information List (PIL), usually on a tablet or a dedicated handheld device, which provides a real-time seat map of the aircraft. This map indicates exactly which seats are occupied and provides the name, gender, and loyalty status of each passenger. The system is updated throughout the boarding process by gate agents, ensuring the crew knows who is on board for security and safety purposes. Beyond basic occupancy, the PIL highlights "Special Service Requests" (SSRs) through unique codes; for example, they can see icons for infants, mobility assistance, or pre-booked dietary meals. While they rely on this data for service, they also use it for "Weight and Balance" checks on smaller planes. However, their information is only as accurate as the passengers; if a traveler swaps seats without notifying the crew, the flight attendant may inadvertently address them by the wrong name or deliver a special meal to the wrong location.