Planet Earth II is a 2016 British nature documentary series co-produced by the BBC Natural History Unit, BBC Studios, BBC America, ZDF, France Télévisions and Tencent and distributed by BBC Worldwide. It functions as a sequel to Planet Earth, which was broadcast in 2006. The series is presented and narrated by Sir David Attenborough with the main theme music composed by Hans Zimmer.

Announced in 2013, Planet Earth II is the first television series produced by the BBC in Ultra-high-definition (4K), and set out to utilise new filmmaking technologies that had been developed since the first series.

The first trailer was released on 9 October 2016, and the series premiered on 6 November 2016 in the United Kingdom on BBC One and BBC One HD. It aired internationally on BBC Earth and other networks.

The series received universal critical acclaim, with many reviewers commending the use of new filmmaking technology and declaring it among the best nature documentaries of all time. It won two Television Awards and two Television Craft Awards from the British Academy of Film and Television Arts, and two Primetime Emmy Awards.

A sequel titled Planet Earth III aired in 2023.