Hendrik Jan Bulthuis was a Dutch customs official, author, and translator of more than thirty works into Esperanto. One of his novels, Idoj de Orfeo is listed in William Auld's Basic Esperanto Reading List.
- Occupation
- linguist, Esperantist, translator, customs officer
- Position held
- Universal Esperanto Association committee member, board member of UEA
- Citizenship
- Kingdom of the Netherlands
- Born
- September 15, 1865
- Died
- April 27, 1945
