| Costitx | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Majorca#Spain Balearic Islands#Spain |
| Pushpin Map Caption: | Location in Majorca |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Balearic Islands |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Pla de Mallorca |
| Subdivision Type4: | Judicial district |
| Area Footnotes: | [1] |
| Area Total Km2: | 15.37 |
| Population As Of: | 2024 |
| Population Footnotes: | [2] |
| Population Total: | 1490 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Area Code Type: | Dialing code |
| Government Footnotes: | [3] |
| Leader Title: | Mayor |
| Leader Name: | Antoni Salas |
| Leader Party: | El Pi |
Costitx (in Catalan; Valencian pronounced as /kosˈtitʃ/) is a small municipality on Majorca, one of the Balearic Islands, Spain.
The Observatorio Astronómico de Mallorca is situated just south of Costitx.[4]