| ASPO | About some Precious Oldies 
| Others |
| ASPO | About Some Precioux Oldies
| Others |
| ASPO | Acquisition Sponsor Project Officer
| Others |
| ASPO | Adaptive Sports Program of Ohio
| Others |
| ASPO | Algemeen Schade Preventie Overleg
| Others |
| ASPO | Alpha Sigma Phi Omega
| Others |
| ASPO | Alternative Spirituality, Polytheism, and Otherwise
| Others |
| ASPO | American Society for Psychoprophylaxis in Obstetrics
| Others |
| ASPO | American Society for Psychoprophylaxis in Obstetricsis
| Others |
| ASPO | American Society of Pediatric Otolaryngology
| Others |
| ASPO | American Society of Preventive Oncology
| Others |
| ASPO | American Society of Professional Organizers
| Others |
| ASPO | Apollo Spacecraft Program Office
| Others |
| ASPO | Army Space Program Office
| Others |
| ASPO | Army Special Programs Office
| Others |
| ASPO | Ask Sheiks for Plenty of Oil
| Others |
| ASPO | Asset Security Protection Officer
| Others |
| ASPO | Association for the Study of Peak Oil
| Others |
| ASPO | Avionics Systems Project Officer
| Others |