Tom Denniss (born 24 February 1961  ) is an Australian athlete, inventor, scientist, and entrepreneur. A Doctor of Mathematics and Oceanography, he invented a technology to convert energy in ocean waves into electricity,  also played professional rugby league, was a finalist in the Australian of the Year Award,  and in 2013 set a new world record for the Fastest Circumnavigation of the Earth on Foot. 
Denniss was born in 1961 in Wollongong, 80 km south of Sydney, Australia. He attended Warilla North Primary School from 1966 to 1973,  and Lake Illawarra High School from 1974 to 1979, and was Student Council President at high school in 1979.  From 1980 to 1982 Denniss completed a degree in Mathematics at the University of Wollongong,  and a Diploma in Education from the University of New South Wales in 1983.
A professional musician in his early life, Denniss has played to international audiences in eight different countries. 
Initially a high school maths teacher, Denniss taught at Newtown High School in Sydney from 1984 to 1990. While working at Newtown High, he attended UNSW part-time during 1988/89, obtaining a First Class Honours degree in Science.  In 1990 Denniss left teaching to pursue a PhD in Mathematics and Oceanography at the same university. While completing his doctorate, from 1990 to 1994, he was an Associate Lecturer in the School of Mathematics at UNSW.  
From 1994 to 1999, Denniss worked at Macquarie Bank, a leading Australian investment bank.  In 1997 he founded Energetech Australia which later became Oceanlinx and, during his spare time, began commercialising the wave energy technology he had earlier invented. In 1999 Denniss became full-time CEO of Energetech Australia.
In late 2004, Denniss stood aside as the CEO of Energetech, but continued in the role of Chief Technology Officer of the company. In 2005 he was invited by Jeffrey Sachs, Special Adviser to the UN Secretary General, to be a member of the Global Roundtable on Climate Change, serving on this forum until 2009.  In 2006 the wave energy technology Denniss invented was named by the US based International Academy of Science as one of Ten Most Outstanding Technologies in the World.   At a ceremony in Hawaii in 2007, Denniss was the first person to be inducted into the International Ocean Energy Hall of Fame as an ocean energy pioneer.  In Shenzhen, China, in 2009, his innovative technology was ranked third by the United Nations Industrial Development Organization (UNIDO) in its annual list of the Top Ten Renewable Energy Investment Opportunities in the World.  Oceanlinx went into receivership in 2014 and in October 2016, Denniss co-founded Wave Swell Energy.
Denniss served as the Australian Government's representative on the International Energy Agency's Ocean Energy Systems Committee from 2007 to 2011  and on the Australian Government's Advisory Board for the Clean Energy Innovation Centre in 2010–11. 
On 31 December 2011, Denniss began a quest to run around the world. He set a new world record and while doing so raised money for Oxfam. Dennis completed the 26,232 km journey on 13 September 2013, becoming just the second person to successfully complete a fully documented world run according to the rules defined by the sport's international governing body, the World Runners Association,  in the process setting a new world record of 622 days for the Fastest Circumnavigation of the Earth on Foot.   His accomplishment was the equivalent of running 622 marathons in 622 days in extremes of heat and cold.
Denniss was a member of the Warilla North Primary School 4 x 100-metre relay team which won three consecutive New South Wales state titles from 1971 to 1973, setting state records in 1971 (Junior Boys 57.4 sec) and 1973 (Senior Boys 52.7 sec).  He was also a member of the Lake Illawarra High 15 years 4 x 100-metre relay team in 1976 which won the New South Wales Combined High Schools state title in record time (45.4 sec).
As a 17-year-old in 1978, Denniss was selected as a reserve in the NSW Combined High Schools Rugby League team. The same year he was chosen to play first grade for the Warilla-Lake South Gorillas rugby league team in the NSW South Coast Rugby League competition.  He was a regular First Grader until his retirement from the game in late 1982, the same year he was selected to play in the NSW Country Team in the NSWRL's annual City versus Country match.  Denniss was also the leading try scorer in the South Coast competition in 1980 and 1981 for the "Warilla Gorillas".
Denniss has also run 100 metres in 10.90 seconds (24 July 1978) and 100 km in 9 hours 26 mins 12 secs (2 May 2008).  It has been postulated he is the only person ever to have run both 100 metres in less than 11 seconds and 100 km in less than 11 hours. 
Tom Denniss, The World At My Feet 1 July 2015 – autobiographical account of his world run 
Wollongong, colloquially referred to as The Gong, is a city located in the Illawarra region of New South Wales, Australia. The name is believed to originate from the Dharawal language, meaning either 'five islands/clouds', 'ground near water' or 'sound of the sea'. Wollongong lies on the narrow coastal strip between the Illawarra Escarpment and the Pacific Ocean, 85 kilometres south of central Sydney. Wollongong had an estimated urban population of 302,739 at June 2018, making it the third-largest city in New South Wales after Sydney and Newcastle and the tenth-largest city in Australia by population. The city's current Lord Mayor is Gordon Bradbery AM who was elected in 2021.
The University of Wollongong is an Australian public research university located in the coastal city of Wollongong, New South Wales, approximately 80 kilometres south of Sydney. As of 2023, the university had an enrolment of more than 33,000 students, an alumni base of more than 176,000 [LC1] and over 2,400 staff members including 16 Distinguished professors.
Lake Illawarra, is an open and trained intermediate wave dominated barrier estuary or large coastal lagoon, is located in the Illawarra region of New South Wales, situated about 100 kilometres (62 mi) south of Sydney, Australia.
The Illawarra is a coastal region in the Australian state of New South Wales, nestled between the mountains and the sea. It is situated immediately south of Sydney and north of the South Coast region. It encompasses the two cities of Wollongong, Shellharbour and the coastal town of Kiama. Wollongong is the largest city of the Illawarra with a population of 240,000, then Shellharbour with a population of 70,000 and Kiama with a population of 10,000. These three cities have their own suburbs. Wollongong stretches from Otford in the north to Windang in the south, with Maddens Plains and Cordeaux in the west.
Port Kembla is a suburb of Wollongong 10 km south of the CBD and part of the Illawarra region of New South Wales. The suburb comprises a seaport, industrial complex, a small harbour foreshore nature reserve, and a small commercial sector. It is situated on the tip of Red Point: its first European sighting was by Captain James Cook in 1770. The name "Kembla" is an Aboriginal word meaning "plenty [of] wild fowl".
Thirroul is a northern seaside suburb of the city of Wollongong, Australia. Situated between Austinmer and Bulli, it is approximately 13 kilometres north of Wollongong, and 73 km south of Sydney. It lies between the Pacific Ocean and a section of the Illawarra escarpment known as Lady Fuller Park, adjacent to Bulli Pass Scenic Reserve.
Stephen Paul Martin is an Australian former politician, senior academic and rugby league referee. He served as an Australian Labor Party (ALP) member of the Australian House of Representatives for the seat of Macarthur, south west of Sydney, from 1984 to 1993; and, following redistribution, represented Cunningham from 1993 until his resignation in 2002. Martin was the Chief Executive of the Committee for Economic Development of Australia (CEDA) from January 2011 until his retirement in April 2017.
The Division of Throsby was an Australian electoral division in the state of New South Wales. The division was named after Charles Throsby, a prominent pioneer and explorer in the early nineteenth century of the areas to the south of Sydney.
Keira High School is a government-funded co-educational comprehensive secondary day school, located in Lysaght Street, North Wollongong, in the Illawarra region of New South Wales, Australia.
Warilla is a seaside suburb of the City of Shellharbour, Australia within the Wollongong urban area. It is one of the more established areas and is between the suburbs of Mount Warrigal in the west, Barrack Heights and Barrack Point in the south and Lake Illawarra in the north.
Wollongong Showground, known as WIN Stadium for sponsorship reasons, is a multi-purpose stadium located in Wollongong, Australia. The stadium was officially opened in 1911. From 1982 until 1998 it played host to every home match for the Illawarra Steelers NRL team, and is still the team's home ground in the lower grade competitions. It is now used as one home ground of the St George Illawarra Dragons rugby league side and Wollongong Wolves of the National Premier Leagues NSW.
South Coast Group 7 Rugby League is the divisional boundary drawn from the Southern Illawarra and South Coast regions of New South Wales, Australia and is governed by the NSWCRL. The main semi-professional competition,, comprises ten (10) teams from across the region. Group 7 Rugby League also administers reserve grade, third grade, and under-18s competitions, Ladies League Tag, as well as looking over many junior competitions.
Corrimal is a northern suburb of the city of Wollongong, New South Wales, Australia. Corrimal's CBD is situated on the Princes Highway, and several streets adjacent to it. The main shopping centres are Lederer Corrimal and Corrimal Park Mall next to the park on the main thoroughfare of Corrimal itself. Outside this centre is an old locomotive that is affectionately known as "The Green Frog". Corrimal's welcome signs feature The Green Frog, as it ran on the Bulli Colliery Line to Bellambi Haven from 1909 to 1967. To the west is a lawn bowls club and a wealthy foothill neighbourhood of residences bordering bushland.
Kiama High School is a government-funded co-educational comprehensive secondary day school, located in the town of Kiama, in the Illawarra region of New South Wales, Australia.
Oceanlinx was a company established in 1997 which specialised in the research and development of ocean-based renewable energy technology. The company's central technology was based on the Wave Energy Converter "WEC" which converts wave energy into electrical energy. Oceanlinx technology focused on the oscillating water column principle, and developed several prototype generators which were deployed and tested in Port Kembla, New South Wales. In 2014, Oceanlinx entered receivership and its technology, intellectual property, brand and trademark were sold to Wave Power Renewables Limited in Hong Kong. Wave Power Renewables Limited has continued to develop the technology, and Oceanlinx's founding director, Tom Denniss has further developed the technology since 2016 as a director of Wave Swell Energy.
Lake Illawarra High School is a government-funded co-educational comprehensive secondary day school, located on Reddall Parade, which follows the shores of Lake Illawarra, in the Illawarra region of New South Wales, Australia.
Corrimal High School is a government-funded co-educational comprehensive secondary day school located in East Corrimal, a suburb of Wollongong in the Illawarra region of New South Wales, Australia.
The Warilla-Lake South Gorillas are an Australian rugby league football team based in Lake Illawarra, a coastal town of the Illawarra region. The club is a part of Country Rugby League and have competed in the South Coast first grade competition since 1970. The club's greatest achievement to date is winning the Clayton Cup in 1982.
The Illawarra Folk Festival started in 1985 in Jamberoo, New South Wales. It has grown to become one of the largest festivals in Australia run entirely by volunteers from the Illawarra Folk Club Inc.
Shakiah Tungai is an Australian rugby league footballer who plays a wing and five-eighth for the St George Illawarra Dragons in the NRL Women's Premiership. She is an Australian and New South Wales representative. Shakiah attended Barrack Heights Public School and Warilla High School.