I Wayan Arka (Balinese: ᬇᬯᬬᬦ᭄ᬅᬃᬓ) FASSA FAHA (born 1962) is an Indonesian-Balinese linguist, lecturer, scholar and researcher at Udayana University (UNUD) in Bali, Indonesia and the Australian National University (ANU) in Canberra, Australia.

Arka completed his Bachelor of Arts with a major in English Linguistics at Udayana University in Bali, Indonesia in 1985 before completing his Master of Arts in Teaching English as a second or foreign language (TESOL) / Applied Linguistics at Hasanuddin University, Indonesia in 1990.

He moved to Sydney, Australia in 1995 to complete his Master of Philosophy with a specialisation in linguistics.

[1] Arka is currently a professor of linguistics at the School of Culture, History & Language (CHL) of the College of Asia & the Pacific (CAP), ANU (2007–present), a lecturer at UNUD (1985–present) and invited visiting scholar at the Faculty of Linguistics, Philology and Phonetics, University of Oxford (2019–present).

[4] Arka works with indigenous minority communities across Indonesia, including Papua, to explore new ways of documenting languages, gain an understanding of the complexity of language endangerment and produce insights into linguistics and related disciplines to advance the new and emerging field of language documentation or documentary linguistics.