Peter Ellis is a British Elite and Age Group duathlete from The New Forest, England.

He finished the 2016 Powerman Duathlon World Series in 29th,[8] 2017 in 7th,[9] 2018 in 11th and 2019 as the silver medalist.

Selected by British Triathlon to compete for the Great Britain Elite team at the ETU European Elite middle-distance duathlon Championships Copenhagen (Denmark 2016), St Wendel (Germany 2017) and Viborg (Denmark 2019), the ASTC Asian Elite middle-distance duathlon Championships Putrajaya (Malaysia 2018, 2019 and 2022), and the ITU World Elite long-distance duathlon championships Powerman Zofingen (Switzerland 2017 and 2019).

[11] Peter Oz Ellis' sporting career started initially as a distance runner, progressing as a club runner with Newquay Road Runners,[12] Hayle Runners, Abingdon AAC,[13] Tipton Harriers[14] and Vale of Aylesbury Athletic Club as well as representing the RAF and UK Armed Forces teams and county representation for Cornwall, Oxfordshire and Shropshire, achieving success in cross country, steeple chase, road running and ultra distance.

Competing in duathlons as an age group athlete he won Royal Air Force, United Kingdom Armed Forces, English National, British National,[23] European and World Championships .