| Antonina | |
| Official Name: | Municipality of Antonina |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name: |  Brazil |
| Subdivision Name1: | South |
| Area Total Km2: | 845.853 |
| Population Total: | 18,949 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Timezone1: | BRT |
| Utc Offset: | -3 |
| Blank Name: | HDI (2010) |
| Blank Info: | 0.687 – medium[2] |
| Leader Name: | Jose Paulo Vieira Azim |
| Leader Party: | PSD |
| Leader Title: | Mayor |
| Established Title: | Founded |
| Established Date: | 12 September 1714 |
Antonina is a municipality in the state of Paraná in southern Brazil. As of 2020, the estimated population was 18,949.
Antonina has an area of . It is located at -25.1°N -48.7167°W. It is 80 km away from Curitiba.
The municipality contains 29% of the Roberto Ribas Lange State Park, created in 1994. It contains part of the Pico Paraná State Park, created in 2002.It also holds 30% of the Bom Jesus Biological Reserve, a strictly protected conservation unit established in 2012.
The small town Antonina was former known as “Capela” – as a chapel has been built there in the 18th century. Due to this fact the inhabitants are called “capelistas” until today. The official name is in honor to King Antonio of Portugal.
Antonina hosts a July winter festival promoted by the Federal University of Paraná, which develops several workshops and shows during this time in the village. The carnival takes place within several blocks and features samba groups.