Achchige Patali Champika Ranawaka (Sinhala: පාඨලී චම්පික රණවක; born 4 August 1965) is a Sri Lankan electrical engineer and a politician.

[3][4] Champika Ranawaka born in Bulathsinghala in the Kalutara district and entered Taxila Central College after being qualified from the Scholarship Examination.

Been an all-rounder at different extra curricular activities, Ranawaka completed the GCE Advanced Level examination ranking first from the Kalutara District to the engineering faculty of the University of Moratuwa where he spent four years as an undergraduate.

[5] He formed the non-political organization known as 'Janatha Mithuro' with some of his colleagues including Athuraliye Rathana Thero, Nishantha Warnasinghe and Malinda Seneviratne.

[5] In the 2015 presidential elections, Ranawaka supported Maithripala Sirisena and the JHU later joined the United National Party-led alliance, the UNFGG.

[11] In April 2011 Ranawaka called the United Nations' report on alleged war crimes in Sri Lanka 'diplomatic terrorism'.