Johan Aaldrik (Han) Stijkel (8 October 1911 in Rotterdam – 4 June 1943 in Berlin-Tegel) was an academic and a Dutch Resistance activist.
[3] According to Jacob Schorer, Stijkel was a homosexual, based on a letter preserved in the archive of his friend Jan Van Leeuwen.
Traitors who infiltrated the group pressured him to deliver espionage material to the government exiled in London.
He was apprehended on April 2, 1941 aboard the KW133, which included the traitor Jan van Wezel, an infiltrator for the Sicherheitspolizei.
[5] Members of the Stijkel Group were imprisoned at the Wehrmachtuntersuchungsgefängnis at 3 Lehrterstrasse in Berlin, Untersuchungshaftanstalt Moabit, and Untersuchungsgefängnis Charlottenburg.