St. Ann's Well in Raheny, Dublin, Ireland was once a popular holy well, and gave its name (with a slightly different spelling) to the well-known St. Anne's Park, the city's largest municipal park, home for many years to the Guinness family.
The well site has a protective hood of stones, and lies just beyond the old lake of the park, with its Roman temple, and below the Watchtower folly, near the main coastal entrance.
The well itself dried up in the 1950s, and although Dublin City Council made several attempts to relocate the source, it remains dry as of 2007[update]. The site is still respected, and was visited in 2000 by a formal joint procession of worshippers from the Raheny parishes of the Roman Catholic Church and Church of Ireland.