Ysbyty Eryri (Welsh for 'Snowdonia Hospital') is a health facility in Lôn Parc, Caernarfon, Gwynedd, Wales.

It is managed by the Betsi Cadwaladr University Health Board.

The facility has its origins in the Caernarfon Union Workhouse which opened in 1846.

[1] It became the Caernarfon Public Assistance Institution in 1930 and it joined the National Health Service as Eryri Hospital in 1948.

[1] Services were transferred from the Caernarfon Eye and Cottage Hospital when it closed in 1981.