3 letters from Klasens, 1 carbon copy of a letter from Černý to Klasens.
1 carbon copy of a letter from Černý to the IFAO concerning books for Klasens.
Exchange of Egyptological publications and research into Demotic and Coptic etymologies.

3 letters from Kitchen and an excerpt from Kitchen's work on Semitic loanwords in Egyptian, 1 carbon copy of a reference letter on behalf of Kitchen written by Černý, 1 carbon copy of a letter from Černý to Kitchen.
Kitchen's work on Semitic loan-words, references for job applications.

3 letters from Kissling, 1 draft of a letter from Černý to Kissling.
Transcription of Egyptian names in the German edition of A. H. Gardiner's Egypt of the Pharaohs, which Kissling was translating. Published as: Gardiner, A. H., Geschichte des Alten Ägypten. Eine Einführung [1965] (OEB 11286).

1 letter from Kirwan, 1 carbon copy of a letter from Černý to Kirwan, 1 carbon copy of a letter from Černý's secretary to Kirwan.
Information on the UNESCO operation in Nubia, Černý mediated contact with Desroches-Noblecourt.

1 letter from Kirollos.
Kirollos consulting Černý regarding the topic of drama and theatre in Antiquity, also thanking Černý for inspiring him when they met in person.

7 letters from Kirkbride, 1 carbon copy of a reference on behalf of D. Kirkbride written by Černý.
2 communications from K. Kenyon concerning D. Kirkbride's application to the British School of Archaeology in Jerusalem, for the position of Secretary-Librarian.
University College London, Kirkbride's studies, and job applications, also reference to the political situation in the Middle East.
Kirkbride congratulating Černý on the Oxford Egyptology Chair election.

1 letter from Khanum, 1 carbon copy of a letter from Černý to Khanum.
Query concerning Khanum's Egyptological studies.

3 letters from Keimer.
Personal matters: social contacts, Keimer's citizenship, development of German Egyptology and the post-war situation.

7 letters from Kees, 1 carbon copy of a letter from Černý to Kees.
Kees's work on priests and priestly genealogies; Kees recommending Schafik Allam as a researcher; Černý writing about changes affecting Egyptological posts in the UK.

6 letters from Keating, 1 carbon copy of a letter from Černý to Keating.
Participation of both in the UNESCO Nubian mission. Keating also made at least one recording with Černý.

2 letters from Kasser, 1 carbon copy of a reference on behalf of Kasser written by Černý.
Coptic studies and Kasser's work on the Bodmer papyri, which resulted in a number of publications dating from the 1950s to the early 2000s.

4 letters from Kantor.
Černý's visits to Chicago (professional and personal matters), and research interests of both correspondents. Černý enquired about an Amarna tablet with a hieratic docket.

1 letter from Kanael.
Query concerning Egyptian weights, with detailed notes created by Černý whilst preparing the reply.

2 letters from Kákosy, 2 carbon copies of letters from Černý to Kákosy.
Coptic etymologies, Černý interested in a hieratic text from Budapest, and records for ostraca also located in Budapest.

1 letter from Paul Kahle (junior).
Coptic.

1 letter from Kahle P. E. (Kahle senior) to Černý, 1 carbon copy of a letter from Černý to Kahle (senior).
Coptic manuscripts, Černý recommends contacting Plumley.

1 letter from Jouguet, 1 letter from Jouguet family member (not identified).
A note from Jouguet about the understanding of some titles during the Graeco-Roman period; a Jouguet family member thanking Černý for his letter of condolence in response to Jouguet's death.

2 letters from Jones.
Invitation to Černý to meetings in Oxford after he had accepted the Egyptology Chair, social contacts.

2 letters from Jonckheere.
Jonckheere's extensive studies in Egyptian medicine.

9 letters from Jelínková.
Jelínková's studies and plans for her dissertation; recommendation for her stay in Brussels, personal matters.

13 letters from J. M. A. Janssen, 1 carbon copy of a letter from Černý to J. M. A. Janssen.
Annual Egyptological Bibliography, and with the research of Pater Janssen, e.g. on the door-jambs in Cairo, Egyptian Museum, JE 48832 (TopBib i2.777), and attestations of the ideal age of 110 years in Egyptian sources, including an Abusir graffito in the mastaba of Ptahshepses (TopBib iii2.342).

2 letters from Janda, 1 carbon copy of a letter from Černý to Janda.
Publication plan for a book on Egyptian art by Černý, to be published in Prague (ultimately abandoned).

1 letter from F. W. James, 1 carbon copy of a letter from Černý to F. W. James.
Planned publication of F. W. James on the site of Beth Shan (Beisan, TopBib vii.376).

2 letters from Hurst, 1 carbon copy of a letter from Černý to Hurst.
Egyptian king-lists as supporting evidence for dating and analysing Nile flood levels.

1 letter from Hornung.
Social contacts, S. Allam mentioned.

7 letters from Hornblower, 2 carbon copies of letters from Černý to Hornblower.
Egyptian mythology studies, especially Osiris; publications exchange.

2 letters from Hood, 1 carbon copy of a letter from Černý to Hood.
Sources attesting the rule of King Khayan.

1 letter from Homer, 1 carbon copy of a letter from Černý to Homer.
Query about interest rates in ancient Egypt. Homer authored A History of Interest Rates. Homer was recommended by R. A. Parker.

2 letters from the Hlouškovi family to Černý'.
The Hlouškovi family, who lived in Boskovice (Moravia), were related to Marie Sargant (Černý's future wife).
Personal matters.

3 letters from Hintze.
History of ancient Egyptian language, etymologies; book and off-prints exchange. Černý obtained H. J. Polotsky's books for Hintze.