| Country: | Spain |
| Sa Unió de Formentera | |
| Ideology: | Conservatism |
| Position: | Centre-right |
| Seats2 Title: | Parliament of the Balearic Islands (Formentera seat) |
| Seats3 Title: | Island Council of Formentera |
Sa Unió de Formentera (English: The Union of Formentera, Sa Unió), is an electoral alliance of the island of Formentera that appeared in 2011 to contest the elections to the Island Council of Formentera and the elections to the Parliament of the Balearic Islands (in coalition with PP).