| NAVARATNAM, Keshini ACTIVE | Director | 30 Jul 2018 | | England | March 1967 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| PURVIS, Phillida Anne ACTIVE | Director | 30 Jul 2018 | | United Kingdom | June 1957 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| SHINOHARA, Tetsuya ACTIVE | Director | 01 Apr 2025 | | United Kingdom | July 1967 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| SUZUKI, Hiroshi, His Excellency ACTIVE | Director | 18 Nov 2024 | | England | June 1961 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| TOKOYODA, Maroshi ACTIVE | Director | 01 Apr 2026 | | England | August 1967 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| WALDEGRAVE, William Arthur, Lord ACTIVE | Director | 30 Jul 2024 | | England | August 1946 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| WARREN, David Alexander, Sir ACTIVE | Director | 30 Jul 2018 | | United Kingdom | August 1952 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| WHITE, Jenny Louise ACTIVE | Director | 02 Jun 2026 | | England | September 1959 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| YOSHIDA, Satoru ACTIVE | Director | 15 Jan 2019 | | England | January 1967 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| FUJITANI, Yasuyuki RESIGNED | Director | 13 Nov 2019 | 31 Mar 2020 | England | March 1958 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| GIFFORD, Michael Roger, Sir RESIGNED | Director | 30 Jul 2018 | 25 May 2021 | England | August 1955 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| HAYASHI, Hajime, His Excellency RESIGNED | Director | 26 Feb 2021 | 25 Oct 2024 | England | October 1958 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| ICHINOKAWA, Satoru RESIGNED | Director | 27 Mar 2024 | 05 Dec 2024 | England | April 1965 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| KANO, Isao RESIGNED | Director | 07 Dec 2018 | 15 Nov 2019 | England | August 1960 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| KATAYAMA, Yoshinori RESIGNED | Director | 20 Oct 2020 | 01 Apr 2022 | United Kingdom | October 1962 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| KUBOTA, Keiji RESIGNED | Director | 07 Dec 2018 | 10 Dec 2019 | United Kingdom | September 1964 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| MIYATA, Hirohiko RESIGNED | Director | 14 Dec 2020 | 17 Oct 2022 | England | November 1962 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| MIYATA, Hirohiko RESIGNED | Director | 04 Jun 2020 | 15 Oct 2020 | England | November 1962 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| NAGAMINE, Yasumasa, His Excellency RESIGNED | Director | 27 Nov 2019 | 04 Jan 2021 | England | April 1954 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| NAKANO, Yukinobu RESIGNED | Director | 24 Oct 2023 | 31 Mar 2026 | England | October 1966 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, England |
| PATTEN OF BARNES, Christopher Francis, Rt Hon Lord RESIGNED | Director | 30 Jul 2018 | 29 Jul 2024 | United Kingdom | May 1944 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| SAZAKI, Takanori RESIGNED | Director | 08 Dec 2022 | 07 Dec 2023 | England | July 1964 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| SAZAKI, Takanori RESIGNED | Director | 09 Dec 2019 | 10 Dec 2020 | England | July 1964 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| TAKADA, Akihiko RESIGNED | Director | 15 Oct 2024 | 31 Mar 2025 | England | September 1965 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| TAKADA, Akihiko RESIGNED | Director | 01 Apr 2022 | 24 Oct 2023 | England | September 1965 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |
| TSURUOKA, Koji, His Excellency RESIGNED | Director | 30 Jul 2018 | 15 Nov 2019 | United Kingdom | August 1952 | Japan House London, 101-111 Kensington High Street, London, W8 5SA, United Kingdom |