RIPDRhode Island Public Defender
RIPDRest In Peace Department (comic)
RIPDRouting Information Protocol Daemon
RIPDRock Island Police Department (Illinois)
RIPDRegional and Intermodal Planning Division
RIPDRadiation-Induced Performance Decrement
RIPDResearch-in-Progress Database
RIPDRock Island Arsenal Purchase Description
RIPDRhode Island Police Department
RIPDResearch, Information & Policy Development
RIPDRegular Itraconazole Pulse Dosing
RIPDResource Industrial Planning Development
RIPDRotary Initiative for Population and Development (Rotary International)
RIPDReactor Internal Pressure Differences (nuclear reactors)