DBH may refer to:
- `DBH (fl. 230-240), 3rd century king of Axum on the territory of modern-day Ethiopia
- Department of Building and Housing (New Zealand), a government agency within the New Zealand government
- Diani Beach Hospital, a hospital in Mombasa, Kenya
- Diameter at breast height, standard method, in forestry terminology, of expressing the diameter of the trunk of a tree
- Deutsche Bergwerks- und Hüttenbau, German company specializing in construction of mines and quarries
- Dopamine β-hydroxylase, enzyme that converts dopamine to norepinephrine