七博士意見書（しちはくしいけんしょ）とは、日露戦争開戦直前の1903年（明治36年）6月10日付で当時の内閣総理大臣桂太郎、外務大臣(日本)小村壽太郎らに提出された意見書。

Shichihakushi Ikensho was a written opinion submitted to the then Prime Minister Taro KATSURA, Minister of Foreign Affairs (Japan) Jutaro KOMURA and so on as of June 10 1903, just before the start of Russo-Japanese War. - Wikipedia日英京都関連文書対訳コーパス

日露戦争に先立つ1903年6月、戸水寛人、富井政章、寺尾亨、高橋作衛、小野塚喜平次、中村進午らと共に開戦論を主張する意見書（七博士意見書）を提出し、世論を開戦の方向へと位置付けた。

KANAI together with Hirondo TOMIZU, Masaakira TOMII, Toru TERAO, Sakue TAKAHASHI, Kiheiji ONOZUKA, and Shingo NAKAMURA submitted the opinion in writing (The Written Opinion of Seven Scholars) supporting the pro-war position and swayed the public opinion in the direction of opening the war in June, 1903 preceding the Russo-Japanese War. - Wikipedia日英京都関連文書対訳コーパス

日本政府内では小村寿太郎、桂太郎、山縣有朋らの対露主戦派と、伊藤博文、井上馨ら戦争回避派との論争が続き、民間においても日露開戦を唱えた戸水寛人ら七博士の意見書（七博士建白事件）や、万朝報紙上での幸徳秋水の非戦論といった議論が発生していた。

While debates continued within the Japanese government between factions including Jutaro KOMURA, Taro KATSURA, and Aritomo YAMAGATA and an anti-war faction including Hirobumi ITO and Kaoru INOUE, these discussions were mirrored in the public sphere by an pro-war petition circulated by seven professors (Seven Professor's Petition) including Hirondo TOMIZU and an anti-war argument and discussion by Shusui KOTUKU which was published in the Yorozuchoho (a daily newspaper). - Wikipedia日英京都関連文書対訳コーパス