Leoncio "Jun" Badilla Evasco Jr. (born March 29, 1944)[3] is a Filipino politician who served as Secretary of the Cabinet from 2016 to 2018 and was the Presidential Adviser on Streamlining of Government Processes under the Duterte administration from 2020 to 2022.

[8] A raid by soldiers in his convent in Catigbian in 1974 pushed him to join the underground Communist Party of the Philippines and its armed wing, the New People's Army.

[6][5] After his release, Evasco worked as secretary general of Samahan ng Ex-Detainees Laban sa Detensyon at Aresto.

Under his leadership Maribojoc received the Galing Pook award for 2011 for its Cadastral Survey and Simultaneous Systematic Adjudication Project.

[7] In the wake of the 2013 Bohol earthquake he was involved in a controversy with Philippine Red Cross volunteers regarding the distribution of relief goods to the victims.