Laurence Cassøe Halsted (born 22 May 1984) is a British foil fencer, silver medallist in the 2008 European Championships and author of Becoming A True Athlete: A Practical Philosophy For Flourishing Through Sport.

[1] He took up fencing himself at the Finchley Foil club and soon showed promise, winning the 2001 Junior European Championships in Keszthely.

He made his breakthrough at the 2008 European Championships in Kyiv: he saw off 2008 World silver medallist Andrea Baldini in the quarter-finals, then Ukraine's Andriy Pohrebnyak to reach the final.

[5] After taking a break from competitive fencing for 2 years, Laurence returned to the British team to help them qualify for the 2016 Rio de Janeiro Olympics.

Now located in Copenhagen, Denmark, Laurence Cassøe Halsted has since 1 January 2017 been Performance Director for the Danish Fencing Federation.