Jan Gies (born August 18, 1905, Amsterdam, Netherlands – died January 26, 1993, Amsterdam, Netherlands) was a member of the Dutch resistance during World War II. He is widely recognized for his role in hiding Anne Frank, her family, and four other individuals from Nazi persecution in the Secret Annex (Achterhuis) located at Prinsengracht 263 in Amsterdam.
Gies was married to Miep Gies, who also played a crucial role in the hiding efforts. Together, Jan and Miep, along with Victor Kugler, Johannes Kleiman, and Bep Voskuijl, formed the group of helpers who provided daily necessities, news, and moral support to the eight hiders for over two years. Jan Gies was instrumental in procuring food, rationing coupons, and other essential supplies, often at great personal risk, to sustain those in hiding.
After the betrayal and arrest of the Frank family and the others in the Annex on August 4, 1944, Jan Gies, along with his wife Miep, returned to the emptied hiding place. There, Miep discovered Anne Frank's diary and other writings scattered on the floor. Jan Gies assisted his wife in collecting and safeguarding these documents, which Miep later presented to Otto Frank, Anne's father and the sole survivor of the eight hiders, after the war.
For his courageous actions in saving Jewish lives during the Holocaust, Jan Gies was honored by Yad Vashem, Israel's official memorial to the victims of the Holocaust, with the title of Righteous Among the Nations. He lived a quiet life in Amsterdam following the war, often reflecting on the tragedy that befell his friends and the importance of remembering the past.