Encyclopedias, Almanacs, Transcripts, and Maps
- Klesl, Melchior
- Kletsk
- Kletzki, Paul
- Kleutgen, Joseph
- Kley, Eduard
- Kligler, Israel Jacob
- Klíma, Ivan
- Kline, Nathan S.
- Klintsy
- Klodawa
- Klong Chen Pa (Longchenpa)
- Klosterneuburg
- Klosterneuburg, Monastery of
- Klotz, Louis-Lucien
- Klug, Aaron
- Kluger, Solomon ben Judah Aaron
- Klugman, Jack
- Klumel, Meir
- Klupfel, Engelbert
- Klutznick, Philip Morris