Marcel Lobelle (c. 1893 - 1967) was a Belgian aeronautical engineer who spent his professional career working in Britain.
He was born in Kortrijk, Flanders, and fought in the Belgian Army at the start of World War I, with the 1st Regiment of Grenadiers. He was seriously wounded in the fighting for Tervaete during the Battle of the Yser in October 1914. On being discharged from the army in 1917 he moved to Britain, taking employment with the Tarrant company, and then Martinsyde, before eventually becoming chief designer at Fairey Aviation.
He left Fairey in 1940 and joined the R. Malcolm Company, which became ML Aviation in 1946 (after Mobbs and Lobelle, the managing director and chief designer respectively).
He died at Wexham Park Hospital on 30 August 1967, the death notice says he was aged 74 and his wife was Doris.