William Trubridge (born on 24 May 1980) is a world champion and double world record holding freediver from New Zealand. He was born in the UK but moved to New Zealand when he was 18 months old. 
Trubridge mainly competes in the depth disciplines. He additionally scored the highest number of points for an individual at the 2010 Freediving Team's World Championships held in Okinawa, Japan.
On 18 January 2011, Trubridge won the World's Absolute Freediver Award (WAFA) naming him best all around freediver, with the highest combined score in six freediving disciplines: static apnea, dynamic apnea with fins, dynamic apnea without fins (pool disciplines), constant weight apnea with fins, constant weight without fins, and free immersion (depth disciplines).
Trubridge is an Apnea Academy instructor and as of 2013[update] operates a freediving school and annual competition, both called Vertical Blue, at Dean's Blue Hole in Long Island, Bahamas from September to May. During the summer he teaches courses in Europe and trained at Tenerife Top Training Center.
Trubridge was the main subject of a documentary entitled "Breathe" directed by Martin Khodabakhshian, which documents Trubridge's pursuits in 2010 to become the first free diver ever to reach 300 feet with a single breath in the discipline of constant weight no fins.
- 81 m (265.74 ft) Constant Weight without fins, 9 April 2007
- 82 m (269.02 ft) Constant Weight without fins, 11 April 2007
- 84 m (275.59 ft) Constant Weight without fins, 4 April 2008
- 107 m (351.04 ft) Free Immersion, 8 April 2008
- 86 m (282.15 ft) Constant Weight without fins, 10 April 2008
- 108 m (354.33 ft) Free Immersion, 11 April 2008
- 88 m (288.71 ft) Constant Weight without fins, 10 April 2009
- 90 m (295.27 ft) Constant Weight without fins, 3 December 2009
- 92 m (301.83 ft) Constant Weight without fins, 19 April 2009
- 116 m (380.57 ft) Free Immersion, 22 April 2010
- 95 m (311.67 ft) Constant Weight without fins, 26 April 2010
- 96 m (314.96 ft) Constant Weight without fins, 10 December 2010
- 100 m (328.08 ft) Constant Weight without fins, 14 December 2010
- 101 m (331.36 ft) Constant Weight without fins, 16 December 2010
- 121 m (396.98 ft) Free Immersion, 10 April 2011
- NZPA (6 December 2009). "Kiwi sets new diving record". stuff.co.nz. Retrieved 6 December 2009.
- Rossier, Nicolas. "One Breath - The Story of William Trubridge (Shorter Version)". YouTube. Retrieved 2013-03-16.
- official website of William Trubridge
- Vertical Blue Freediving homepage
- Current Freediving World Records
- Deeperblue.net Free-diving forum
- Apnea Academy - A global teaching organisation for underwater apnea - presided over by Umberto Pelizzari
- AIDA New Zealand website
- Short documentary about William Trubridge by Nicolas Rossier
- William Trubridge freediving and zen journey
- DiveWise.Org - non profit organization dedicated to freediver education, science and safety