| ISPD | Illinois Society of Pediatric Dentistry 
| Others |
| ISPD | Illinois Society of Pediatric Dentists
| Others |
| ISPD | Indian Society for Pediatric Dermatology
| Others |
| ISPD | Institute for School and Parish Development
| Others |
| ISPD | Institute of School and Parish Development
| Others |
| ISPD | International Society for Peritoneal Dialysis
| Others |
| ISPD | International Society for Prenatal Diagnosis
| Others |
| ISPD | International Society of Pediatric Dermatology
| Others |
| ISPD | International Surface Pressure Databank
| Others |
| ISPD | International Symposium on Physical Design
| Others |