| Jacobus Kann | |
| Birth Date: | 1872 7, df=yes |
| Birth Place: | The Hague |
| Death Place: | Theresienstadt |
| Citizenship: | Netherlands |
| Known For: | Political Zionism |
| Education: | Finance |
| Occupation: | Banker, Diplomat (in 1923-27) |
| Spouse: | Adriana Anna Polak Daniels |
Jacobus Henricus Kann (The Hague, 12 July 1872 – Theresienstadt, 7 October 1944) was a Dutch Jewish banker and partner of the Lissa & Kann banking house. He was among the main leaders of the early Zionist Movement
At the Seventh Zionist Congress (1905) Kann was elected to the Executive of the World Zionist Organization (known then as the "Smaller Actions Committee"), which at the Eighth Zionist Congress (1907) was reduced to three members, Kann, Wolffsohn, and Otto Warburg. He had very cordial and close relations with David Wolffsohn, who replaced Herzl as the Zionist leader - being Wolffsohn's personal friend and strongly supporting Wolffsohn in the often uphill struggle to prove himself a worthy successor to the charismatic Herzl. Hundreds of letters exchanged between Kann and Wolfson are preserved at the Central Zionist Archives in Jerusalem, testifying to the close and affectionate relations between them.[1]