The Glenrothes by-election was triggered by the death of sitting MP, John MacDougall.
Here, the BBC Scotland news website profiles the candidates for the 6 November by-election.
MORAG BALFOUR, SCOTTISH SOCIALISTS
Morag Balfour: Scottish Socialist candidate
Morag Balfour, a practising Quaker, has lived in Glenrothes all her life, aside from a three-year stint as a community worker in the American city of Camden, New Jersey.
Like many fellow socialists, she has actively opposed nuclear weapons in Scotland and campaigns for free school meals.
Ms Balfour currently volunteers in a befriending scheme which aims to support young people recently released from Polmont Young Offenders Institute and cut reoffending rates.
MAURICE GOLDEN, CONSERVATIVE
Maurice Golden: Conservative candidate
Maurice Golden, a keen environmentalist, currently works as a campaigns manager for the for green group, Keep Scotland Beautiful.
The 28-year-old, who lives in Newport-on-Tay, in Fife, is a big advocate of the latest methods for recycling and cutting waste.
The keen football fan became heavily involved with Conservative politics as a student at Dundee University.
PETER GRANT, SNP
Peter Grant: SNP candidate
Peter Grant has lived in Fife for 25 years, and currently leads the area's local council, run by a Nationalist-Lib Dem coalition.
The 48-year-old spent 16 years as a councillor, winning his first local election in 1992.
Mr Grant, married to local GP and fellow SNP councillor Fiona Grant, initially trained as a teacher, but went on to spend much of his working life in the public sector.
LINDSAY ROY, LABOUR
Lindsay Roy: Labour candidate
Lindsay Roy, currently head teacher at Kirkcaldy High - Gordon Brown's old school - has been a prominent figure on the Fife education scene for a number of years.
Mr Roy, who also served as Rector of Inverkeithing High School for 18 years and is a past president of the Headteachers' Association of Scotland, was awarded a CBE in 2004 for services to education.
The 59-year-old, who lives in Glenrothes, has been a church elder for more than 35 years, currently for the town's St Columba's Church.
KRIS SEUNARINE, UK INDEPENDENCE PARTY
Kris Seunarine: UKIP candidate
Kris Seunarine, the chairman of Fife Branch of the UK Independence Party, works in the field of bio-photonics - the interaction of light with matter.
Born in Essex in 1968 and raised in Berkshire, Dr Seunarine currently lives in East Wemyss and plies his chosen field at Dundee University.
An active Mormon, he is a member of the Church of Jesus Christ of Latterday Saints in Kirkcaldy and has traced his family's Puritan roots back as far as 1565 Suffolk.
HARRY WILLS, LIBERAL DEMOCRATS
Harry Wills: Lib Dem candidate
Harry Wills, 61, has spent his career in business and currently works as a management consultant.
He has served as the chief executive of several companies and has held senior positions at chambers of commerce in Tayside and Angus.
Mr Wills is also an Elder and member of the Kirk Session of Creich, Flisk and Kilmany Church in Fife and has helped raise funds for the restoration of the ship Discovery, used by Captain Scott on his 1901 on his voyage to the Antarctic, which is in Dundee.
LOUISE MCLEARY, SOLIDARITY
Louise McLeary: Solidarity
Louise McLeary lives in the part of Kirkcaldy which is in the Glenrothes constituency. The 30-year-old has been an activist and a campaigner in her community since she was a 19.
She works as a volunteer for an Edinburgh-based drugs agency and is on the management committee for the Fife Independent Disability Network.
Ms McLeary, who is visually impaired, has been a spokesperson for the Campaign Against Charges group in Fife - set up to address rising homecare charges affecting elderly and disabled people.
JIM PARKER, SCOTTISH SENIOR CITIZEN'S UNITY PARTY
Jim Parker: SSCUP candidate
Jim Parker has been canvassing people across Fife for better pensions since the Scottish elections last May.
He spent 50 years working in the mining industry in the UK and overseas, and he heads a consortium of mineworkers and businessmen, which wants to see the re-opening of several collieries in Fife and Lothians.
The 69-year-old, who was raised in Cupar and studied at study at Heriot-Watt University, is married with four grown-up children.
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