- Kirchhoff´s hypotheses
- Kirchhoff’s current law
- Kirchhoff’s equation
- Kirchhoff’s laws
- Kirghiz literature
- Kirghiz sheep
- Kirgiz
- Kirgiz costume
- Kirgiz dance
- Kirgiz dastan
- Kirgiz music
- Kirgiz pattern felt
- Kirhgiz Olong
- Kiribati
- Kiribati language
- Kiribati：Aspects of History
- Kirikirijin (The People of Kirikiri)
- Kirillov
- Kirillov conjecture
- Kirill Petrovich Kondrashin
- Kirin meteorite
- Kirino Natsuo
- Kirinyaga Peak
- Kiri Te Kanawa
- Kirkendall effect