Antonio Jatta (25 June 1852 – 4 August 1912) was an Italian politician and lichenologist.

After completing his secondary studies at the Classical Lyceum Umberto I in Naples, at the age of 22 he graduated with honours in natural history at the University of Naples and in agriculture at the Royal Higher School of Agriculture in Portici.

Already at that time he distributed an exsiccata-like work under the title Lichenes Italiae Meridionalis exsiccati.

[4] A 1962 publication by William Culberson noted that most of his subgeneric names from the Flora Italica Cryptogama had not been included in Alexander Zahlbruckner's influential 10-volume work Catalog Lichenum Universalis (1922–1940), nor in Elke Mackenzie's (then known as Ivan Lamb) 1963 followup work Index Nominum Lichenum.

In 1900, botanist Augusto Napoleone Berlese published Jattaea, a genus of fungi in the family Calosphaeriaceae and named in honour of Jatta.