The Otago University Debating Society (OUDS) is a debating society established in June 1878 and is the oldest society of the University of Otago, the first university to be founded in New Zealand. Echoing trends in Australia and the United States, in the latter decades of the nineteenth century debating was seen as an important talent for New Zealand's thought leaders, and was one of the three sports in the New Zealand University Games from 1902.

The Otago University Students' Association (OUSA) is the Students' Association of the University of Otago, New Zealand. OUSA was founded in 1890 to advance student interests on campus.