| I/OB | Input/Output Bus  
| Technology, Computing |
| IOB | 3d graphics database in TDDD format
| Others |
| IOB | I O bridge
| Others |
| IOB | Impact of Brass
| Others |
| IOB | Impact On Business
| Others |
| IOB | Index Out of Bounds
| Others |
| IOB | Indian Overseas Bank
| Others |
| IOB | Indian Overseas Bank's
| Others |
| IOB | Input Output Block
| Others |
| IOB | Input Output Blocks
| Others |
| IOB | Input Output Buffer
| Others |
| IOB | Input/Output Box
| Others |
| IOB | Input/Output Bridge
| Others |
| IOB | Input/Output Buffer
| Others |
| IOB | Inside Outside Beginning
| Others |
| IOB | Institute of Bankers
| Others |
| IOB | Institute of Banking
| Others |
| IOB | Institute of Bioinformatics
| Others |
| IoB | Institute of Biology
| Others |
| IOB | Institutul Oncologic Bucuresti
| Others |
| IOB | Insulin On Board
| Others |
| IOB | Intelligence Oversight Board
| Others |
| IOB | Inter Organization Board
| Others |
| IOB | International Operations Branch
| Others |
| IOB | International Operations Branch (ORA)
| Others |
| IOB | International Order Book
| Others |
| IOB | Internet Of Bees
| Others |
| IOB | Internet Of Bodies
| Others |
| IOB | Internet Of Buildings
| Others |
| IOB | Internet Of Business
| Others |
| IOB | Iranian Oil Bourse
| Others |