| Font Santa's Well | |
| Native Name: | Aljub de la Font Santa |
| Native Name Lang: | ca |
| Building Type: | Rainwater storage well |
| Client: | Juries of Campos |
| Owner: | Catalan; Valencian: [[Ajuntament de Campos]] |
| Address: | Campos |
| Location Country: | Majorca, Spain |
| Start Date: | 1671 |
Catalan; Valencian: Aljub de la Font Santa ("Font Santa's Well", also known as Catalan; Valencian: Aljub des banyos or Catalan; Valencian: Aljub de Cas Donat[1]) is an historic building, housing a rainwater storage well, in the municipality of Campos, Majorca. It was built in 1671–1673, during the restoration of the adjacent Church of Catalan; Valencian: Saint Joan de la Font Santa, by remodelling the bathing room of a house known as Catalan; Valencian: Ca's Donat.
It used a double filter system and delivered water to external and internal wash basins, as well as drinking troughs for animals.
It had a capacity of 400000l and was in use until the late nineteenth century.
The well was restored in 2007–2009. A stone plaque affixed to it states: