The Nature of Things (formerly, The Nature of Things with David Suzuki) is a Canadian television series of documentary programs. It debuted on CBC Television on 6 November 1960. Many of the programs document nature and the effect that humans have on it, although the program's overall scope includes documentaries on any aspect of science. The program "was one of the first mainstream programs to present scientific evidence on a number of environmental issues, including nuclear power and genetic engineering".

The series is named after an epic poem by Roman philosopher Lucretius: "De rerum natura"—On the Nature of Things.