Mark Jonathon Mortlock Simmonds is a Conservative Party politician in the United Kingdom. He was the Member of Parliament (MP) for Boston and Skegness in Lincolnshire, and was first elected in 2001, succeeding Sir Richard Body. He was re-elected in 2005 with a greatly increased majority before his subsequent re-election in 2010 – more than doubling his 2005 majority.

Boston and Skegness is a county constituency, represented in the House of Commons of the UK Parliament. It is located in Lincolnshire, England. Like all British constituencies, Boston and Skegness elects one Member of Parliament (MP) by the first-past-the-post system of election. The seat has been represented by the Conservative MP Matt Warman since the 2015 general election, and is usually considered a safe seat for the party.