Derek Roland Clark (10 October 1933 – 1 January 2023) was a UK Independence Party politician.

He was a Member of the European Parliament (MEP) for the East Midlands from 2004 to 2014.

In 2011, he was investigated by OLAF, the EU anti-fraud office, and was made to repay £31,800 for wages paid to employees who were working for UKIP and not for his EU Parliament work.

Clark was a climate change denier and pledged to ban the teaching of anthropogenic global warming in schools.

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