Roy Dadaynga Marika (MBE) (c. 1925 - 1993) was a member of the famous Marika family, youngest of the four Marika brothers after Mawalan I Marika, Mathaman Marika and Milirrpum Marika. He was the leader of the Rirratjingu clan from 1970 on, and the president of the Yirrkala Village Council. The Marika were members of the Yolngu and were involved in Milirrpum v Nabalco Pty Ltd (named after Roy's older brother Milirrpum). All four were politically active for the rights of the Indigenous Australians and were well-known artists.
His daughter was Raymattja Marika.
- "The Marika Family". National Museum of Australia. Retrieved 12 November 2014.