Delbo or Del Bo is a surname. Notable people with the surname include:
Charlotte Delbo (1913–1985), French writer and Auschwitz survivor Hedvig Delbo (1908–1944), Norwegian Gestapo agent Jean-Jacques Delbo (1909–1996), French actor José Delbo (1933–2024), Argentine comics artist Lisa del Bo (born 1961), Belgian singer Rinaldo Del Bo (1916–1991), Italian politician
See also Delbo, a puzzle video game Del Bo Authority, the last High Authority of the European Coal and Steel Community Lea Del Bo Rossi (1903–1978), Italian medical researcher Mikkel Delbo Larsen (born 1985), Danish badminton player Palazzo del Bo, the historical seat of University of Padua since 1493