| Acronym | Definition |
|---|
| HCSO | Hillsborough County Sheriff's Office (Florida) |
| HCSO | Hamilton County Sheriff's Office (Cincinnati, OH) |
| HCSO | Hardee County Sheriffs Office (Wauchula, FL) |
| HCSO | Health Care Security Ordinance (Office of Labor Standards; San Francisco, CA) |
| HCSO | Hungary Central Statistical Office |
| HCSO | Hamilton County Special Olympics (Ohio, USA) |
| HCSO | Health Care Services Organization (Arizona) |
| HCSO | Harris County Sheriff's Office/Officer (Texas) |
