| ISB | I Should Be .... 
| Others |
| ISB | Ice Skating Bay
| Others |
| ISB | Idaho State Bar
| Others |
| ISB | Idle Speed B
| Others |
| ISB | IGN SmackDown Board
| Others |
| ISB | Illegal Soap Box
| Others |
| ISB | Illinois State Bar
| Others |
| ISB | Illuminated Seatbelt Buckle
| Others |
| ISB | Imperial Safety Bureau
| Others |
| ISB | Imperial Security Bureau
| Others |
| ISB | Implementing the Strategic Blueprint
| Others |
| ISB | In Store Bakery
| Others |
| ISB | In Store Bank
| Others |
| ISB | Incentive Spirometry Breathing
| Others |
| ISB | Incredible String Band
| Others |
| ISB | Independence Standards Board
| Others |
| ISB | Independent Science Board
| Others |
| ISB | Independent Side Band
| Others |
| ISB | Independent Side-Band
| Others |
| ISB | Indian School of Business
| Others |
| ISB | Indiana State Bar
| Others |
| ISB | Infiltrating Stupid Buttface
| Others |
| ISB | Inflatable Safety Belts
| Others |
| ISB | Inflatable Seat Belts
| Others |
| ISB | Information Sciences Building
| Others |
| ISB | Information Seeking Behavior
| Others |
| ISB | Information Solutions Business
| Others |
| ISB | Information Standards Board
| Others |
| ISB | Information Systems Branch
| Others |
| ISB | Information Systems for Biotechnology
| Others |
| ISB | Informational and Structural Biology
| Others |
| ISB | Initial Staging Base
| Others |
| ISB | Inner Spiral Bundle
| Others |
| ISB | Inspection Support Branch
| Others |
| ISB | Institut Suisse de Bioinformatique
| Others |
| ISB | Institute for Systematic Botany
| Others |
| ISB | Institute for Systems Biology
| Others |
| ISB | Institute for Systems Biology's
| Others |
| ISB | Instruction Stream Buffer
| Others |
| ISB | Insurance Search Bureau
| Others |
| ISB | Integrated Solutions for Business
| Others |
| ISB | Integrated Squared Bias
| Others |
| ISB | Integrative Studies Biology
| Others |
| ISB | Integrative Systems Biology
| Others |
| ISB | Intelink Security Board
| Others |
| ISB | Intellectual Sharing Body
| Others |
| ISB | Intelligence Systems Board
| Others |
| ISB | Intensive Survey Branch
| Others |
| ISB | Inter Semester Break
| Others |
| ISB | Inter Shelf Bus
| Others |
| ISB | Inter-modal Steel Building
| Others |
| ISB | Inter-State Bus
| Others |
| ISB | Interact System B
| Others |
| ISB | Intercollegiate Specialty Examinations Board
| Others |
| ISB | Intermediate SideBand
| Others |
| ISB | Intermediate Small Bank
| Others |
| ISB | Intermediate Staging Base
| Others |
| ISB | Internal Service Broker
| Others |
| ISB | International School Bangkok
| Others |
| ISB | International School Brunei
| Others |
| ISB | International School of Beaverton
| Others |
| ISB | International School of Beijing
| Others |
| ISB | International School of Bejing
| Others |
| ISB | International School of Belgrade
| Others |
| ISB | International School of Boston
| Others |
| ISB | International School of Brooklyn
| Others |
| ISB | International School of Broward
| Others |
| ISB | International School of Brussels
| Others |
| ISB | International School of Business
| Others |
| ISB | International Soccer Bank
| Others |
| ISB | International Society for Biocuration
| Others |
| ISB | International Society for Biocuration's
| Others |
| ISB | International Society of Bassists
| Others |
| ISB | International Society of Biomechanics
| Others |
| ISB | International Society of Biometeorology
| Others |
| ISB | International Society of Biourbanism
| Others |
| ISB | International Speedway Boulevard
| Others |
| ISB | International Sports Broadcasting
| Others |
| ISB | International Staff Band
| Others |
| ISB | International Star Bulletin
| Others |
| ISB | International Student Barometer
| Others |
| ISB | International Symposium on Bi-lingualism
| Others |
| ISB | International Symposium on Bilingualism
| Others |
| ISB | International Syndicate of Business
| Others |
| ISB | Internet Satellite Broadcast
| Others |
| ISB | Internet Security Box
| Others |
| ISB | Internet Service Bus
| Others |
| ISB | Internet Sharing Box
| Others |
| ISB | Internet Space Builder
| Others |
| ISB | Internet Stock Blog
| Others |
| ISB | interscalene block
| Others |
| ISB | Invest to Save Budget
| Others |
| ISB | Investigative Services Branch
| Others |
| ISB | Investment Savings Bank
| Others |
| ISB | Invincible Super Blog
| Others |
| ISB | Iowa School Board
| Others |
| ISB | Iowa State Bar
| Others |
| ISB | Irish Stud Book
| Others |
| ISB | Irrational Super Bear
| Others |
| ISB | ISB Stands for Benazir
| Others |
| ISB | Islamabad, Pakistan
| Others |
| ISB | Islamic Society of Baltimore
| Others |
| ISB | Islamic Speakers Bureau
| Others |
| ISB | Isothermic Saturation Boundary
| Others |
| ISB | Issue Solution Benefit
| Others |