Duelberg
Dülberg is the family name of the following people:
- Ewald Dülberg (1888–1933), German painter and wood cutter
- Franz Dülberg (manager) (1827–1887), German civil servant and finance and railway manager
- Franz Dülberg (art historian) (1873–1934), German art historian and writer
- Franz Dülberg (cyclist) ( Franz Dülberg Jr .; 1905– ??), German cyclist
- Peter Dülberg (1911–1976), German artist
- Thomas Dülberg (* 1954), German journalist and moderator
- Hedwig Dülberg-Arnheim (1894–1944), German artist