IDB
- IDB Bank
- IndexedDB
- Industrial Development Bank (disambiguation)
- Industrial Development Board for Northern Ireland
- Industrial Development Bureau
- Industrial Organisation and Development Act 1947
- Inlichtingendienst Buitenland
- Intel Debugger
- Intelligent drum and bass
- Inter-American Development Bank
- Interface Descriptor Block
- Internal drainage board
- Involuntary denied boarding
- Irish Dairy Board
- Islamic Development Bank
- Israel Discount Bank
- MCI Inc.
- US Census Bureau International Data Base