PS Ruby is the name of several ships:

• PS Ruby (1841), the first iron built paddle steamer in service from the English mainland to the Isle of Wight, see Red Funnel
• PS Ruby (1861), a fast Clyde passenger steamer, later a Civil War blockade runner^[1]
• PS Ruby (1907), a historic paddle steamer preserved at Wentworth on the Murray River in Australia

List of ships with the same or similar names

This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.