Saint Woolos Hospital (Welsh: Ysbyty Sant Gwynllyw) is located in the Stow Hill area of Newport, Wales.

It is managed by the Aneurin Bevan University Health Board.

The site for the hospital was donated by Sir Charles Morgan, 2nd Baronet.

[1] The hospital was designed by Thomas Henry Wyatt and was opened as the Newport Union Workhouse and Infirmary in 1837.

[2] It joined the National Health Service as St Woolos Hospital, named after Saint Gwynllyw, patron saint of Newport Cathedral, in 1948.