On December 27, 2014 Lucas married his wife Tiziri, who he met while both were attending lycée, similar to sixth form. The couple have two chidren, a son called Isahoet born in April 2019 and a daughter Inhaya, born in 2021. Digne was in Barcelona when it was hit by a terror attack on 17 August 2017, and gave first aid to the victims.