Denzil Douglas, who became prime minister in 1995, won a fourth consecutive term in office in January 2010.
Douglas, a physician, called the elections early and led a campaign touting efforts to boost the islands' small economy, build roads and hospitals and continue paying the national debt despite the global economic crisis.
His St Kitts-Nevis Labour Party (SKNLP) won six of the 11 seats in the National Assembly.
Mr Douglas has been credited with promoting tourism and combating crime, but his government failed to rejuvenate the ailing sugar industry, which the government decided to shut down in 2005.
The prime minister has said any differences between Nevis and St Kitts should be tackled by constitutional reform, rather than by a referendum on secession.
Born in 1953, he became leader of the St Kitts and Nevis Labour Party in 1989. A Labour Party activist since his youth, he led the party to victory in the 1995 elections.