Diplomats — reference index 8
- José Manuel Puig Casauranc — Mexico
- José Manuel Tirado — Peru
- José Manuel Zozaya Bermúdez — Mexico
- José Maria da Silva Paranhos Júnior
- José María de Areilza — Spain
- José María Magallón — Spain
- José María Mata — Mexico
- José María Montoya — Mexico
- José María Tornel — Mexico
- José María Yrigoyen — Peru
- José Marques Lisboa — Brazil
- José Octavio Bordón — Argentina
- José Polo de Bernabé y Mordella — Spain
- José Ramón Cabañas Rodríguez — Cuba
- José Silvestre Rebello — Brazil
- José T. Barón — Cuba
- José Tomás de Cuéllar — Mexico
- Juan de Miralles — Spain
- Juan du Bosc — Spain
- Juan Federico Elmore — Peru
- Juan Francisco de Cárdenas — Spain
- Juan Francisco Urquidi — Mexico
- Juan Ignacio de Osma — Peru
- Juan José Bremer de Martino — Mexico
- Juan José Rovira y Sánchez-Herrero — Spain
- Juan Manuel de Barros — Spain
- Juan Nepomuceno Almonte — Mexico
- Juan Riaño y Gayangos — Spain
- Juan Valera y Alcalá-Galiano — Spain
- Jules Berthémy — France
- Jules Cambon — France
- Jules Henri de Sibour
- Jules Henry — France
- Jules Patenôtre — France
- Jules Treilhard — France
- Julián Enciso — Argentina
- Julián Santamaría Ossorio — Spain
- Juracy Montenegro Magalhães — Brazil
- Jutarō Komura — Japan
- Jürgen Chrobog — Germany
- Jürgen Ruhfus — Germany
- K. R. Narayanan — India
- K. Shankar Bajpai — India
- Kai Fu Shah — China
- Kairat Umarov — Kazakhstan
- Kanat Saudabayev — Kazakhstan
- Kang Kyung-wha — Korea
- Karan Singh — India
- Karin Olofsdotter — Sweden
- Karl Heinrich Knappstein — Germany
- Karl Lang — Germany
- Karl von Struve — Russia
- Kassa Tekleberhan — Ethiopia
- Kassahun Ayele — Ethiopia
- Katsuji Debuchi — Japan
- Keijirō Nabeshima — Japan
- Keinosuke Fujii — Japan
- Keishirō Matsui — Japan
- Keith Officer — Australia
- Keith Waller — Australia
- Kenichiro Sasae — Japan
- Kensuke Horinouchi — Japan
- Kevin Rudd — Australia
- Kewal Singh — India
- Khairi O. T. al-Zubaidi — Iraq
- Khalid bin Salman Al-Saud — Saudi Arabia
- Kichisaburō Nomura — Japan
- Kifle Wodajo — Ethiopia
- Kijūrō Shidehara — Japan
- Kikujirō Ishii — Japan
- Kim Beazley — Australia
- Kim Chung-yul — Korea
- Kim Dong-jo — Korea
- Kim Hyun-chul — Korea
- Kim Kyung-won — Korea
- Kim Yong-shik — Korea
- Kim Yun-jeong — Korea
- Kirsten Hillman — Canada
- Kiyonari Yoshida — Japan
- Klaus Scharioth — Germany
- Kogorō Takahira — Japan
- Koji Tomita — Japan
- Konstantin Catacazy — Russia
- Konstantin Umansky — Russia
- Koo Choong-whay — Korea
- Kostyantyn Gryshchenko — Ukraine
- Kōichirō Asakai — Japan
- Kōsai Uchida — Japan
- Krikor Der-Hagopian — Iraq
- Kunihiko Saito — Japan
- Kurd von Schlözer — Germany
- L. K. Jha — India
- Lalit Mansingh — India
- Lambertus Nicodemus Palar — Indonesia
- Laurent Bili — France
- Lawrence Eagleburger
- Lee Hong-koo — Korea
- Lee Joon-ho — Korea
- Lee Soo-hyuck — Korea
- Lee Tae-sik — Korea