KDP
- Amazon (company)
- Carpathian German Party
- Constitutional Democratic Party
- Kappa Delta Pi
- Katipunan ng Demokratikong Pilipino
- Keurig Dr Pepper
- Khmer Democratic Party
- Kindle Direct Publishing
- Kommunistische Partei Deutschlands
- Korea Democratic Party
- Kurdish Democratic Party of Iran
- Kurdistan Democratic Party
- Monopotassium phosphate