- Kailash
- Kalpana
- Kamphaeng Phet
- Kamphaengphet School
- Kanchanaburi
- Karandamakuta
- Karen
- Kavisamaya (convention of the poet)
- Keed-Kin Anicient Town
- Kendis
- Khamer Language
- Khaphrakaew ethnic group
- Kher Literature
- Khmer
- Khmer art
- Khmer Culture
- Khmer kingdom
- Khmer language
- Khmer Letter
- Khmer Loanwords
- Khmer Story
- Khmer Temple
- Kho Prom
- Khon Khen
- Kin Site
- King
- King Rama III
- King Rama VI
- King Taksin
- King Vajiravudh
- Kinship
- Klong Ban Sai
- Knowledge key gap
- Kwam To Muang