Mariano Ezequiel Arcioni (born 2 April 1970) is an Argentine politician who served as governor of Chubut Province from 2017 to 2023.

Arcioni finished high school at Comodoro Rivadavia's Liceo Militar General Roca.

In 1995 he received his licenciatura in law from the Buenos Aires–based University of Belgrano, and later completed a degree from Universidad del Salvador to work as a scrivener.

[1] Ahead of the 2015 general election, former governor Mario Das Neves chose Arcioni as his running mate in the race for the governorship of Chubut.

[8] Throughout 2020 there were also protests against Arcioni's policy on surface mining in Chubut, seemingly backtracking on his campaign promises.