| ORBIT | Observational Research Behavioral Information Technology 
| Others |
| ORBIT | Oncology Research for Biologics and Immunotherapy Translation
| Others |
| ORBIT | Online Retrieval of Bibliographic Information Time Shared
| Others |
| ORBIT | Online Roleplaying Based Internet Training
| Others |
| ORBIT | Online Room Booking and Integrated Timetabling
| Others |
| ORBIT | Opiate Recovery By Intensive Tracking
| Others |
| ORBIT | Overnight Rapid Bovine Identification Test
| Others |