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 . 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 of Antonina was former known as "Capela" â as a chapel was built here in the 18th century. Due to this fact the inhabitants are called "capelistas" to this day. 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.