Antonio Decaro (born 17 July 1970) is an Italian politician and former Mayor of Bari. He was elected President of Puglia in the 2025 Apulian regional election. He ran as the candidate of the Centre-left coalition, and won with 63.97% of the vote.

Decaro graduated in engineering from the Polytechnic University of Bari. In his youth, he was a socialist. But after the collapse of the Italian Socialist Party, he moved closer to the Democratic Party, of which he is now one of the best-known members. After a brief work experience as deputy head of the department of the Apulian Aqueduct, he was employed by ANAS in 2000.

In 2004 he was hired by mayor of Bari Michele Emiliano as Councilor for mobility and traffic, distinguishing himself for his environmentalism: Decaro has contributed to the implementation of initiatives and infrastructures that have marked the change in the mobility and traffic policies in Bari. His goal was to empty the city center of cars and redefine the spaces and lifestyle of citizens and commuters.

In 2010 he was elected regional councilor in Apulia as a member of the Democratic Party and was group leader of the party in the regional assembly from 2010 to 2013, when he was elected Deputy after the 2013 elections.

In January 2014, he announced on his Facebook page his intention to run for mayor of Bari. In June, he is elected mayor, with the support of his predecessor Michele Emiliano, the Democratic Party, Left Ecology Freedom, Italy of Values and the Democratic Centre.

On 12 October 2016, Decaro was elected President of the National Association of Italian Comunes, the association of all the mayors of the country.

On 26 May 2019, Decaro ran for re-election as mayor of Bari. He won handily with nearly two-thirds of the vote (66.27%) in the first round, thus avoiding a runoff.

In 2020, in the midst of the COVID-19 pandemic, Decaro gained popularity on social media for his posts against citizens breaking stay-at-home rules.