Erik Patrik Honoré de Laval (28 April 1888 – 9 November 1973) was a Swedish modern pentathlete who won a silver medal at the 1920 Summer Olympics. Lieutenant Erik de Laval served with the Svea Artillery Regiment (A 1) in Stockholm. He competed at the 1912 Stockholm Olympics together with his elder brothers Georg and Patrik, who were also military officers. Erik was disqualified in the cross-country riding, while Georg won the bronze medal.