MCPD may refer to:
- 3-MCPD, a toxic by-product of acid-hydrolyzed soy sauce
- Maui County Police Department
- Microsoft Certified Professional Developer
- Montgomery County Police Department, the primary law enforcement agency for Montgomery County, Maryland
- Multi-Crop Passport Descriptor, an international standard to facilitate germplasm passport information exchange
- Mixopolis City Police Department, the police tribe from the TV series Mixels