The main Welsh ports used by passengers are Holyhead (75.7% of passengers), Milford Haven (10.9%) and Fishguard (13.4%).
Y prif borthladdoedd yng Nghymru a ddefnyddir gan deithwyr yw Caergybi (75.7% o deithwyr), Aberdaugleddau (10.9%) ac Abergwaun (13.4%).