The List of Japanese ambassadors to the Holy See started when Harada Ken presented his credentials to Pius XII in 1942.
This is a chronological list of Japanese diplomats.[1] [2]
| Inaugural date | Official position (Japanese) | Official position | Name (Japanese) | Name |
|---|---|---|---|---|
| April 25, 1942 | 特命全権公使 | Minister Plenipotentiary | 原田 健 | |
| January 27, 1946 | Closed following the Japanese surrender of World War II | |||
| April 28, 1952 | 臨時代理公使 | Chargé d'affaires ad interim | 金山 政英 | Kanayama Masahide |
| July 2, 1952 | 臨時代理公使 | Chargé d'affaires ad interim | 吉浦 盛純 | Yoshiura Morizumi |
| January 26, 1953 | 特命全権公使 | Minister Plenipotentiary | 井上 孝治郎 | Inoue Kōjirō |
| October 30, 1955 | 臨時代理公使 | Chargé d'affaires ad interim | 芳賀 四郎 | Haga Shirō |
| February 23, 1956 | 特命全権公使 | Minister Plenipotentiary | 鶴岡 千仭 | |
| April 4, 1958 | 特命全権大使 | Ambassador | 鶴岡 千仭 | |
| May 25, 1959 | 臨時代理大使 | Chargé d'affaires ad interim | 広瀬 達夫 | Hirose Tatsuo |
| November 1, 1959 | 特命全権大使 | Ambassador | 吉岡 範武 | Yoshioka Noritake |
| April 17, 1962 | 臨時代理大使 | Chargé d'affaires ad interim | 吉浦 盛純 | Yoshiura Morizumi |
| May 8, 1962 | 特命全権大使 | Ambassador | 別府 節弥 | Beppu Setsuya |
| January 7, 1965 | 臨時代理大使 | Chargé d'affaires ad interim | 吉川 紀彦 | Yoshikawa Norihiko |
| January 26, 1965 | 特命全権大使 | Ambassador | 小川 清四郎 | Ogawa Seishirō |
| November 16, 1967 | 臨時代理大使 | Chargé d'affaires ad interim | 西田 信夫 | Nishida Nobuo |
| January 18, 1968 | 特命全権大使 | Ambassador | 田村 幸久 | Tamura Yukihisa |
| February 10, 1970 | 臨時代理大使 | Chargé d'affaires ad interim | 田辺 健 | Tanabe Ken |
| February 14, 1970 | 特命全権大使 | Ambassador | 服部 比左治 | Hattori Hisaji |
| August 20, 1972 | 臨時代理大使 | Chargé d'affaires ad interim | 田辺 健 | Tanabe Ken |
| September 25, 1972 | 特命全権大使 | Ambassador | 吉岡 俊夫 | Yoshioka Toshio |
| November 26, 1974 | 臨時代理大使 | Chargé d'affaires ad interim | 石川 行男 | Ishikawa Yukio |
| January 13, 1975 | 特命全権大使 | Ambassador | 猪名川 治郎 | Inagawa Jirō |
| August 19, 1976 | 臨時代理大使 | Chargé d'affaires ad interim | 石川 行男 | Ishikawa Yukio |
| September 15, 1976 | 特命全権大使 | Ambassador | 菅沼 潔 | Suganuma Kiyoshi |
| August 7, 1980 | 臨時代理大使 | Chargé d'affaires ad interim | 山田 亮 | Yamada Ryō |
| November 17, 1980 | 特命全権大使 | Ambassador | 太田 正己 | Ōta Masami |
| February 26, 1983 | 臨時代理大使 | Chargé d'affaires ad interim | 楠田 正義 | Kusuda Masayoshi |
| March 12, 1983 | 特命全権大使 | Ambassador | 中村 輝彦 | Nakamura Teruhiko |
| September 16, 1985 | 臨時代理大使 | Chargé d'affaires ad interim | 林 要一 | Hayashi Yōichi |
| September 26, 1985 | 特命全権大使 | Ambassador | 内田 園生 | Uchida Sonoo |
| February 25, 1988 | 臨時代理大使 | Chargé d'affaires ad interim | 大島 愛高 | Ōshima Aitaka |
| April 24, 1988 | 特命全権大使 | Ambassador | 小杉 照夫 | Kosugi Teruo |
| July 21, 1990 | 臨時代理大使 | Chargé d'affaires ad interim | 大島 愛高 | Ōshima Aitaka |
| July 26, 1990 | 特命全権大使 | Ambassador | 谷田 正躬 | |