Dede Oetomo (born in Pasuruan, East Java, Indonesia in 1953) is a campaigner for LGBT rights in Indonesia and an expert on gender issues in East Java.
He is the founder of GAYa Nusantara (formerly named Lambda Indonesia), the first organization for LGBT rights in Indonesia, and a member of the People's Democratic Party (PRD).
As a student and teacher of linguistics, Dede Oetomo is the author of Beginning Indonesian Through Self-Instruction, printed by the Cornell University Press.
Dede Oetomo is currently the National Coordinator of GAYa Nusantara.
He is an active member of the Asia-Pacific Council of AIDS Service Organisations.