- KAG
- German abbreviation for Kapitalanlagegesellschaft (Investment trust)
- KfW
- German abbreviation for Kreditanstalt für Wiederaufbau (Reconstruction Loan Corporation)
- KISS
- German abbreviation for Kurs-Informations-Service-System (pcKISS)
- Kreditanstalt für Wiederaufbau (KfW)
- Reconstruction Loan Corporation
- KWG
- German abbreviation for Kreditwesengesetz (Credit Services Act)