Man vs. Wild, also called Born Survivor: Bear Grylls, is a survival television series hosted by Bear Grylls, on the Discovery Channel in the United States, Canada, India and Australia. In the United Kingdom, the series is shown on both the Discovery Channel and on Channel 4. The series is produced by British television production company Diverse Bristol. The show premiered on November 10 2006 after airing a pilot episode titled The Rockies on October 27 2006.

In the show, Grylls both demonstrates and narrates techniques for wilderness survival in regions around the globe, from ice fields, mountain ranges, swamps and deserts. The general format of each episode is that Grylls is dropped into the region simulating a stranded explorer/tourist. The episode documents his efforts to survive and find a way back to civilisation, usually requiring an overnight shelter of some kind. Bear also tells about successful and failed survivals in the particular area he is in.

The program has shown him eating raw meat and live fish, staving off hypothermia, and drinking the fluids of elephant feces and his own urine for hydration. In advertisements for Season Two of Man vs. Wild, a disgusted Grylls is shown eating an enormous grub while the announcer states, "Does Bear Grylls really need to do these things? Probably not. But you might."

The exact nature of the show has attracted debate, as to where it sits on the scale of serious factual documentary and dramatic entertainment. Given the premise that Grylls completes the episodes unaided, the amount of help Grylls receives off camera and during filming the show has been debated, and attracted press and viewer comment. In the pilot episode, Grylls was made to wear a concealed lifejacket for one scene for health and safety reasons. For subsequent shows he has insisted all sequences be performed his way.