Inside Nature's Giants is a British science documentary, first broadcast in June 2009 by Channel 4. The documentary shows experts performing dissection on some of nature's largest animals, including whales and elephants.

The programme is presented by Mark Evans. The series attempts to uncover the secrets of the animals examined. Mark is assisted by evolutionary biologists Richard Dawkins and Simon Watt, and comparative anatomist Joy Reidenberg. The show is currently airing on PBS in the United States and repeats are currently airing on Eden and Watch in the UK.

There is an iPad application that allows you to see every animal the show have worked on close up.