Tewit Well, also known in its early days as "Tuit" or "Tuewhit", is a spa water well, the first chalybeate source discovered in Harrogate, North Yorkshire, England. After marrying Elizabeth Broad, in 1582 William Slingsby took his new wife on a Grand Tour of Europe, returning in 1594. In 1596 Slingsby discovered that water from Stray, a common in Harrogate, possessed similar properties to that at Spa in Belgium.