| ICSP | In Circuit Serial Programming 
| Others |
| ICSP | In-Circuit Serial Programming
| Others |
| ICSP | In-College Scholarship Program
| Others |
| ICSP | Indian Centre for Space Physics
| Others |
| ICSP | Initial C-V2x System Profile
| Others |
| ICSP | Institut Catala de Sexologia i Psicoterapia
| Others |
| ICSP | Institute of Corporate Secretaries of Pakistan
| Others |
| ICSP | Integrated Community Sustainability Plan
| Others |
| ICSP | International Committee on Systematics of Prokaryotes
| Others |
| ICSP | International Conference on Software Process
| Others |
| ICSP | International Council on Shared Parenting
| Others |
| ICSP | International Cultural Service Program
| Others |
| ICSP | International Customer Service Professionals
| Others |
| ICSP | Internet and Computer Service Provider
| Others |
| ICSP | Irish Cervical Screening Programme
| Others |