| Term | Full Form | Category |
|---|---|---|
| HCSO | Hamilton County Sheriff's Office | Others |
| HCSO | Hamilton County Sheriffs Office | Others |
| HCSO | Harris County Sheriff's Office | Others |
| HCSO | Harris County Sheriffs Office | Others |
| HCSO | Health Care Security Ordinance | Others |
| HCSO | Health Care Services Organization | Others |
| HCSO | Hennepin County Sheriff's Office | Others |
| HCSO | Henry County Sheriff's Office | Others |
| HCSO | Hillsborough County Sheriff's Office | Others |
| HCSO | Honors College Student Organization | Others |
| HCSO | Hungarian Central Statistical Office | Others |